638615745

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2243}}^1$

素因数の和:2316

約数の個数: 80

約数和(自身を含む): 1238149440

約数和(自身を除く): 599533695

約数列:

[1, 3, 5, 9, 15, 19, 27, 37, 45, 57, 81, 95, 111, 135, 171, 185, 285, 333, 405, 513, 555, 703, 855, 999, 1539, 1665, 2109, 2243, 2565, 2997, 3515, 4995, 6327, 6729, 7695, 10545, 11215, 14985, 18981, 20187, 31635, 33645, 42617, 56943, 60561, 82991, 94905, 100935, 127851, 181683, 213085, 248973, 284715, 302805, 383553, 414955, 639255, 746919, 908415, 1150659, 1244865, 1576829, 1917765, 2240757, 3451977, 3734595, 4730487, 5753295, 6722271, 7884145, 11203785, 14191461, 17259885, 23652435, 33611355, 42574383, 70957305, 127723149, 212871915, 638615745]

約数ペア:

[(1, 638615745), (3, 212871915), (5, 127723149), (9, 70957305), (15, 42574383), (19, 33611355), (27, 23652435), (37, 17259885), (45, 14191461), (57, 11203785), (81, 7884145), (95, 6722271), (111, 5753295), (135, 4730487), (171, 3734595), (185, 3451977), (285, 2240757), (333, 1917765), (405, 1576829), (513, 1244865), (555, 1150659), (703, 908415), (855, 746919), (999, 639255), (1539, 414955), (1665, 383553), (2109, 302805), (2243, 284715), (2565, 248973), (2997, 213085), (3515, 181683), (4995, 127851), (6327, 100935), (6729, 94905), (7695, 82991), (10545, 60561), (11215, 56943), (14985, 42617), (18981, 33645), (20187, 31635)]