256494420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2237}}^1$

素因数の和:2279

約数の個数: 216

約数和(自身を含む): 975114504

約数和(自身を除く): 718620084

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 49, 52, 60, 63, 65, 70, 78, 84, 90, 91, 98, 105, 117, 126, 130, 140, 147, 156, 180, 182, 195, 196, 210, 234, 245, 252, 260, 273, 294, 315, 364, 390, 420, 441, 455, 468, 490, 546, 585, 588, 630, 637, 735, 780, 819, 882, 910, 980, 1092, 1170, 1260, 1274, 1365, 1470, 1638, 1764, 1820, 1911, 2205, 2237, 2340, 2548, 2730, 2940, 3185, 3276, 3822, 4095, 4410, 4474, 5460, 5733, 6370, 6711, 7644, 8190, 8820, 8948, 9555, 11185, 11466, 12740, 13422, 15659, 16380, 19110, 20133, 22370, 22932, 26844, 28665, 29081, 31318, 33555, 38220, 40266, 44740, 46977, 57330, 58162, 62636, 67110, 78295, 80532, 87243, 93954, 100665, 109613, 114660, 116324, 134220, 140931, 145405, 156590, 174486, 187908, 201330, 203567, 219226, 234885, 261729, 281862, 290810, 313180, 328839, 348972, 402660, 407134, 436215, 438452, 469770, 523458, 548065, 563724, 581620, 610701, 657678, 704655, 814268, 872430, 939540, 986517, 1017835, 1046916, 1096130, 1221402, 1308645, 1315356, 1409310, 1424969, 1644195, 1744860, 1832103, 1973034, 2035670, 2192260, 2442804, 2617290, 2818620, 2849938, 3053505, 3288390, 3664206, 3946068, 4071340, 4274907, 4932585, 5234580, 5699876, 6107010, 6576780, 7124845, 7328412, 8549814, 9160515, 9865170, 12214020, 12824721, 14249690, 17099628, 18321030, 19730340, 21374535, 25649442, 28499380, 36642060, 42749070, 51298884, 64123605, 85498140, 128247210, 256494420]

約数ペア:

[(1, 256494420), (2, 128247210), (3, 85498140), (4, 64123605), (5, 51298884), (6, 42749070), (7, 36642060), (9, 28499380), (10, 25649442), (12, 21374535), (13, 19730340), (14, 18321030), (15, 17099628), (18, 14249690), (20, 12824721), (21, 12214020), (26, 9865170), (28, 9160515), (30, 8549814), (35, 7328412), (36, 7124845), (39, 6576780), (42, 6107010), (45, 5699876), (49, 5234580), (52, 4932585), (60, 4274907), (63, 4071340), (65, 3946068), (70, 3664206), (78, 3288390), (84, 3053505), (90, 2849938), (91, 2818620), (98, 2617290), (105, 2442804), (117, 2192260), (126, 2035670), (130, 1973034), (140, 1832103), (147, 1744860), (156, 1644195), (180, 1424969), (182, 1409310), (195, 1315356), (196, 1308645), (210, 1221402), (234, 1096130), (245, 1046916), (252, 1017835), (260, 986517), (273, 939540), (294, 872430), (315, 814268), (364, 704655), (390, 657678), (420, 610701), (441, 581620), (455, 563724), (468, 548065), (490, 523458), (546, 469770), (585, 438452), (588, 436215), (630, 407134), (637, 402660), (735, 348972), (780, 328839), (819, 313180), (882, 290810), (910, 281862), (980, 261729), (1092, 234885), (1170, 219226), (1260, 203567), (1274, 201330), (1365, 187908), (1470, 174486), (1638, 156590), (1764, 145405), (1820, 140931), (1911, 134220), (2205, 116324), (2237, 114660), (2340, 109613), (2548, 100665), (2730, 93954), (2940, 87243), (3185, 80532), (3276, 78295), (3822, 67110), (4095, 62636), (4410, 58162), (4474, 57330), (5460, 46977), (5733, 44740), (6370, 40266), (6711, 38220), (7644, 33555), (8190, 31318), (8820, 29081), (8948, 28665), (9555, 26844), (11185, 22932), (11466, 22370), (12740, 20133), (13422, 19110), (15659, 16380)]