128481990

素因数分解:

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

素因数の和:2526

約数の個数: 128

約数和(自身を含む): 399651840

約数和(自身を除く): 271169850

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 19, 21, 26, 30, 35, 38, 39, 42, 57, 65, 70, 78, 91, 95, 105, 114, 130, 133, 182, 190, 195, 210, 247, 266, 273, 285, 390, 399, 455, 494, 546, 570, 665, 741, 798, 910, 1235, 1330, 1365, 1482, 1729, 1995, 2470, 2477, 2730, 3458, 3705, 3990, 4954, 5187, 7410, 7431, 8645, 10374, 12385, 14862, 17290, 17339, 24770, 25935, 32201, 34678, 37155, 47063, 51870, 52017, 64402, 74310, 86695, 94126, 96603, 104034, 141189, 161005, 173390, 193206, 225407, 235315, 260085, 282378, 322010, 329441, 450814, 470630, 483015, 520170, 611819, 658882, 676221, 705945, 966030, 988323, 1127035, 1223638, 1352442, 1411890, 1647205, 1835457, 1976646, 2254070, 3059095, 3294410, 3381105, 3670914, 4282733, 4941615, 6118190, 6762210, 8565466, 9177285, 9883230, 12848199, 18354570, 21413665, 25696398, 42827330, 64240995, 128481990]

約数ペア:

[(1, 128481990), (2, 64240995), (3, 42827330), (5, 25696398), (6, 21413665), (7, 18354570), (10, 12848199), (13, 9883230), (14, 9177285), (15, 8565466), (19, 6762210), (21, 6118190), (26, 4941615), (30, 4282733), (35, 3670914), (38, 3381105), (39, 3294410), (42, 3059095), (57, 2254070), (65, 1976646), (70, 1835457), (78, 1647205), (91, 1411890), (95, 1352442), (105, 1223638), (114, 1127035), (130, 988323), (133, 966030), (182, 705945), (190, 676221), (195, 658882), (210, 611819), (247, 520170), (266, 483015), (273, 470630), (285, 450814), (390, 329441), (399, 322010), (455, 282378), (494, 260085), (546, 235315), (570, 225407), (665, 193206), (741, 173390), (798, 161005), (910, 141189), (1235, 104034), (1330, 96603), (1365, 94126), (1482, 86695), (1729, 74310), (1995, 64402), (2470, 52017), (2477, 51870), (2730, 47063), (3458, 37155), (3705, 34678), (3990, 32201), (4954, 25935), (5187, 24770), (7410, 17339), (7431, 17290), (8645, 14862), (10374, 12385)]