21070292360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{268343}}^1$

素因数の和:268518

約数の個数: 64

約数和(自身を含む): 51393242880

約数和(自身を除く): 30322950520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 151, 260, 302, 520, 604, 755, 1208, 1510, 1963, 3020, 3926, 6040, 7852, 9815, 15704, 19630, 39260, 78520, 268343, 536686, 1073372, 1341715, 2146744, 2683430, 3488459, 5366860, 6976918, 10733720, 13953836, 17442295, 27907672, 34884590, 40519793, 69769180, 81039586, 139538360, 162079172, 202598965, 324158344, 405197930, 526757309, 810395860, 1053514618, 1620791720, 2107029236, 2633786545, 4214058472, 5267573090, 10535146180, 21070292360]

約数ペア:

[(1, 21070292360), (2, 10535146180), (4, 5267573090), (5, 4214058472), (8, 2633786545), (10, 2107029236), (13, 1620791720), (20, 1053514618), (26, 810395860), (40, 526757309), (52, 405197930), (65, 324158344), (104, 202598965), (130, 162079172), (151, 139538360), (260, 81039586), (302, 69769180), (520, 40519793), (604, 34884590), (755, 27907672), (1208, 17442295), (1510, 13953836), (1963, 10733720), (3020, 6976918), (3926, 5366860), (6040, 3488459), (7852, 2683430), (9815, 2146744), (15704, 1341715), (19630, 1073372), (39260, 536686), (78520, 268343)]