20123335040

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:513

約数の個数: 256

約数和(自身を含む): 51795763200

約数和(自身を除く): 31672428160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 37, 40, 62, 64, 74, 79, 80, 124, 128, 148, 155, 158, 160, 185, 248, 296, 310, 316, 320, 347, 370, 395, 496, 592, 620, 632, 640, 694, 740, 790, 992, 1147, 1184, 1240, 1264, 1388, 1480, 1580, 1735, 1984, 2294, 2368, 2449, 2480, 2528, 2776, 2923, 2960, 3160, 3470, 3968, 4588, 4736, 4898, 4960, 5056, 5552, 5735, 5846, 5920, 6320, 6940, 9176, 9796, 9920, 10112, 10757, 11104, 11470, 11692, 11840, 12245, 12640, 12839, 13880, 14615, 18352, 19592, 19840, 21514, 22208, 22940, 23384, 23680, 24490, 25280, 25678, 27413, 27760, 29230, 36704, 39184, 43028, 44416, 45880, 46768, 48980, 50560, 51356, 53785, 54826, 55520, 58460, 64195, 73408, 78368, 86056, 90613, 91760, 93536, 97960, 102712, 107570, 109652, 111040, 116920, 128390, 137065, 146816, 156736, 172112, 181226, 183520, 187072, 195920, 205424, 215140, 219304, 222080, 233840, 256780, 274130, 313472, 344224, 362452, 367040, 374144, 391840, 398009, 410848, 430280, 438608, 453065, 467680, 513560, 548260, 688448, 724904, 734080, 783680, 796018, 821696, 849803, 860560, 877216, 906130, 935360, 1014281, 1027120, 1096520, 1376896, 1449808, 1567360, 1592036, 1643392, 1699606, 1721120, 1754432, 1812260, 1870720, 1990045, 2028562, 2054240, 2193040, 2899616, 3184072, 3399212, 3442240, 3508864, 3624520, 3980090, 4057124, 4108480, 4249015, 4386080, 5071405, 5799232, 6368144, 6798424, 6884480, 7249040, 7960180, 8114248, 8216960, 8498030, 8772160, 10142810, 11598464, 12736288, 13596848, 14498080, 15920360, 16228496, 16996060, 17544320, 20285620, 25472576, 27193696, 28996160, 31442711, 31840720, 32456992, 33992120, 40571240, 50945152, 54387392, 57992320, 62885422, 63681440, 64913984, 67984240, 81142480, 108774784, 125770844, 127362880, 129827968, 135968480, 157213555, 162284960, 251541688, 254725760, 271936960, 314427110, 324569920, 503083376, 543873920, 628854220, 649139840, 1006166752, 1257708440, 2012333504, 2515416880, 4024667008, 5030833760, 10061667520, 20123335040]

約数ペア:

[(1, 20123335040), (2, 10061667520), (4, 5030833760), (5, 4024667008), (8, 2515416880), (10, 2012333504), (16, 1257708440), (20, 1006166752), (31, 649139840), (32, 628854220), (37, 543873920), (40, 503083376), (62, 324569920), (64, 314427110), (74, 271936960), (79, 254725760), (80, 251541688), (124, 162284960), (128, 157213555), (148, 135968480), (155, 129827968), (158, 127362880), (160, 125770844), (185, 108774784), (248, 81142480), (296, 67984240), (310, 64913984), (316, 63681440), (320, 62885422), (347, 57992320), (370, 54387392), (395, 50945152), (496, 40571240), (592, 33992120), (620, 32456992), (632, 31840720), (640, 31442711), (694, 28996160), (740, 27193696), (790, 25472576), (992, 20285620), (1147, 17544320), (1184, 16996060), (1240, 16228496), (1264, 15920360), (1388, 14498080), (1480, 13596848), (1580, 12736288), (1735, 11598464), (1984, 10142810), (2294, 8772160), (2368, 8498030), (2449, 8216960), (2480, 8114248), (2528, 7960180), (2776, 7249040), (2923, 6884480), (2960, 6798424), (3160, 6368144), (3470, 5799232), (3968, 5071405), (4588, 4386080), (4736, 4249015), (4898, 4108480), (4960, 4057124), (5056, 3980090), (5552, 3624520), (5735, 3508864), (5846, 3442240), (5920, 3399212), (6320, 3184072), (6940, 2899616), (9176, 2193040), (9796, 2054240), (9920, 2028562), (10112, 1990045), (10757, 1870720), (11104, 1812260), (11470, 1754432), (11692, 1721120), (11840, 1699606), (12245, 1643392), (12640, 1592036), (12839, 1567360), (13880, 1449808), (14615, 1376896), (18352, 1096520), (19592, 1027120), (19840, 1014281), (21514, 935360), (22208, 906130), (22940, 877216), (23384, 860560), (23680, 849803), (24490, 821696), (25280, 796018), (25678, 783680), (27413, 734080), (27760, 724904), (29230, 688448), (36704, 548260), (39184, 513560), (43028, 467680), (44416, 453065), (45880, 438608), (46768, 430280), (48980, 410848), (50560, 398009), (51356, 391840), (53785, 374144), (54826, 367040), (55520, 362452), (58460, 344224), (64195, 313472), (73408, 274130), (78368, 256780), (86056, 233840), (90613, 222080), (91760, 219304), (93536, 215140), (97960, 205424), (102712, 195920), (107570, 187072), (109652, 183520), (111040, 181226), (116920, 172112), (128390, 156736), (137065, 146816)]