20148030880

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:687

約数の個数: 192

約数和(自身を含む): 50295168000

約数和(自身を除く): 30147137120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 83, 109, 124, 155, 160, 166, 218, 248, 310, 332, 415, 436, 449, 496, 545, 620, 664, 830, 872, 898, 992, 1090, 1240, 1328, 1660, 1744, 1796, 2180, 2245, 2480, 2573, 2656, 3320, 3379, 3488, 3592, 4360, 4490, 4960, 5146, 6640, 6758, 7184, 8720, 8980, 9047, 10292, 12865, 13280, 13516, 13919, 14368, 16895, 17440, 17960, 18094, 20584, 25730, 27032, 27838, 33790, 35920, 36188, 37267, 41168, 45235, 48941, 51460, 54064, 55676, 67580, 69595, 71840, 72376, 74534, 82336, 90470, 97882, 102920, 108128, 111352, 135160, 139190, 144752, 149068, 180940, 186335, 195764, 205840, 222704, 244705, 270320, 278380, 280457, 289504, 298136, 361880, 372670, 391528, 411680, 445408, 489410, 540640, 556760, 560914, 596272, 723760, 745340, 783056, 978820, 1113520, 1121828, 1155277, 1192544, 1402285, 1447520, 1490680, 1517171, 1566112, 1957640, 2227040, 2243656, 2310554, 2804570, 2981360, 3034342, 3915280, 4062103, 4487312, 4621108, 5609140, 5776385, 5962720, 6068684, 7585855, 7830560, 8124206, 8974624, 9242216, 11218280, 11552770, 12137368, 15171710, 16248412, 18484432, 20310515, 22436560, 23105540, 24274736, 30343420, 32496824, 36968864, 40621030, 44873120, 46211080, 48549472, 60686840, 64993648, 81242060, 92422160, 121373680, 125925193, 129987296, 162484120, 184844320, 242747360, 251850386, 324968240, 503700772, 629625965, 649936480, 1007401544, 1259251930, 2014803088, 2518503860, 4029606176, 5037007720, 10074015440, 20148030880]

約数ペア:

[(1, 20148030880), (2, 10074015440), (4, 5037007720), (5, 4029606176), (8, 2518503860), (10, 2014803088), (16, 1259251930), (20, 1007401544), (31, 649936480), (32, 629625965), (40, 503700772), (62, 324968240), (80, 251850386), (83, 242747360), (109, 184844320), (124, 162484120), (155, 129987296), (160, 125925193), (166, 121373680), (218, 92422160), (248, 81242060), (310, 64993648), (332, 60686840), (415, 48549472), (436, 46211080), (449, 44873120), (496, 40621030), (545, 36968864), (620, 32496824), (664, 30343420), (830, 24274736), (872, 23105540), (898, 22436560), (992, 20310515), (1090, 18484432), (1240, 16248412), (1328, 15171710), (1660, 12137368), (1744, 11552770), (1796, 11218280), (2180, 9242216), (2245, 8974624), (2480, 8124206), (2573, 7830560), (2656, 7585855), (3320, 6068684), (3379, 5962720), (3488, 5776385), (3592, 5609140), (4360, 4621108), (4490, 4487312), (4960, 4062103), (5146, 3915280), (6640, 3034342), (6758, 2981360), (7184, 2804570), (8720, 2310554), (8980, 2243656), (9047, 2227040), (10292, 1957640), (12865, 1566112), (13280, 1517171), (13516, 1490680), (13919, 1447520), (14368, 1402285), (16895, 1192544), (17440, 1155277), (17960, 1121828), (18094, 1113520), (20584, 978820), (25730, 783056), (27032, 745340), (27838, 723760), (33790, 596272), (35920, 560914), (36188, 556760), (37267, 540640), (41168, 489410), (45235, 445408), (48941, 411680), (51460, 391528), (54064, 372670), (55676, 361880), (67580, 298136), (69595, 289504), (71840, 280457), (72376, 278380), (74534, 270320), (82336, 244705), (90470, 222704), (97882, 205840), (102920, 195764), (108128, 186335), (111352, 180940), (135160, 149068), (139190, 144752)]