12907700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9929}}^1$

素因数の和:9956

約数の個数: 36

約数和(自身を含む): 30167340

約数和(自身を除く): 17259640

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 9929, 19858, 39716, 49645, 99290, 129077, 198580, 248225, 258154, 496450, 516308, 645385, 992900, 1290770, 2581540, 3226925, 6453850, 12907700]

約数ペア:

[(1, 12907700), (2, 6453850), (4, 3226925), (5, 2581540), (10, 1290770), (13, 992900), (20, 645385), (25, 516308), (26, 496450), (50, 258154), (52, 248225), (65, 198580), (100, 129077), (130, 99290), (260, 49645), (325, 39716), (650, 19858), (1300, 9929)]