256963980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2477}}^1$

素因数の和:2528

約数の個数: 192

約数和(自身を含む): 932520960

約数和(自身を除く): 675556980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 19, 20, 21, 26, 28, 30, 35, 38, 39, 42, 52, 57, 60, 65, 70, 76, 78, 84, 91, 95, 105, 114, 130, 133, 140, 156, 182, 190, 195, 210, 228, 247, 260, 266, 273, 285, 364, 380, 390, 399, 420, 455, 494, 532, 546, 570, 665, 741, 780, 798, 910, 988, 1092, 1140, 1235, 1330, 1365, 1482, 1596, 1729, 1820, 1995, 2470, 2477, 2660, 2730, 2964, 3458, 3705, 3990, 4940, 4954, 5187, 5460, 6916, 7410, 7431, 7980, 8645, 9908, 10374, 12385, 14820, 14862, 17290, 17339, 20748, 24770, 25935, 29724, 32201, 34580, 34678, 37155, 47063, 49540, 51870, 52017, 64402, 69356, 74310, 86695, 94126, 96603, 103740, 104034, 128804, 141189, 148620, 161005, 173390, 188252, 193206, 208068, 225407, 235315, 260085, 282378, 322010, 329441, 346780, 386412, 450814, 470630, 483015, 520170, 564756, 611819, 644020, 658882, 676221, 705945, 901628, 941260, 966030, 988323, 1040340, 1127035, 1223638, 1317764, 1352442, 1411890, 1647205, 1835457, 1932060, 1976646, 2254070, 2447276, 2704884, 2823780, 3059095, 3294410, 3381105, 3670914, 3953292, 4282733, 4508140, 4941615, 6118190, 6588820, 6762210, 7341828, 8565466, 9177285, 9883230, 12236380, 12848199, 13524420, 17130932, 18354570, 19766460, 21413665, 25696398, 36709140, 42827330, 51392796, 64240995, 85654660, 128481990, 256963980]

約数ペア:

[(1, 256963980), (2, 128481990), (3, 85654660), (4, 64240995), (5, 51392796), (6, 42827330), (7, 36709140), (10, 25696398), (12, 21413665), (13, 19766460), (14, 18354570), (15, 17130932), (19, 13524420), (20, 12848199), (21, 12236380), (26, 9883230), (28, 9177285), (30, 8565466), (35, 7341828), (38, 6762210), (39, 6588820), (42, 6118190), (52, 4941615), (57, 4508140), (60, 4282733), (65, 3953292), (70, 3670914), (76, 3381105), (78, 3294410), (84, 3059095), (91, 2823780), (95, 2704884), (105, 2447276), (114, 2254070), (130, 1976646), (133, 1932060), (140, 1835457), (156, 1647205), (182, 1411890), (190, 1352442), (195, 1317764), (210, 1223638), (228, 1127035), (247, 1040340), (260, 988323), (266, 966030), (273, 941260), (285, 901628), (364, 705945), (380, 676221), (390, 658882), (399, 644020), (420, 611819), (455, 564756), (494, 520170), (532, 483015), (546, 470630), (570, 450814), (665, 386412), (741, 346780), (780, 329441), (798, 322010), (910, 282378), (988, 260085), (1092, 235315), (1140, 225407), (1235, 208068), (1330, 193206), (1365, 188252), (1482, 173390), (1596, 161005), (1729, 148620), (1820, 141189), (1995, 128804), (2470, 104034), (2477, 103740), (2660, 96603), (2730, 94126), (2964, 86695), (3458, 74310), (3705, 69356), (3990, 64402), (4940, 52017), (4954, 51870), (5187, 49540), (5460, 47063), (6916, 37155), (7410, 34678), (7431, 34580), (7980, 32201), (8645, 29724), (9908, 25935), (10374, 24770), (12385, 20748), (14820, 17339), (14862, 17290)]