20888935730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{650543}}^1$

素因数の和:650595

約数の個数: 48

約数和(自身を含む): 42857838720

約数和(自身を除く): 21968902990

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 169, 190, 247, 338, 494, 845, 1235, 1690, 2470, 3211, 6422, 16055, 32110, 650543, 1301086, 3252715, 6505430, 8457059, 12360317, 16914118, 24720634, 42285295, 61801585, 84570590, 109941767, 123603170, 160684121, 219883534, 321368242, 549708835, 803420605, 1099417670, 1606841210, 2088893573, 4177787146, 10444467865, 20888935730]

約数ペア:

[(1, 20888935730), (2, 10444467865), (5, 4177787146), (10, 2088893573), (13, 1606841210), (19, 1099417670), (26, 803420605), (38, 549708835), (65, 321368242), (95, 219883534), (130, 160684121), (169, 123603170), (190, 109941767), (247, 84570590), (338, 61801585), (494, 42285295), (845, 24720634), (1235, 16914118), (1690, 12360317), (2470, 8457059), (3211, 6505430), (6422, 3252715), (16055, 1301086), (32110, 650543)]