639112630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{50683}}^1$

素因数の和:50800

約数の個数: 32

約数和(自身を含む): 1251692064

約数和(自身を除く): 612579434

約数列:

[1, 2, 5, 10, 13, 26, 65, 97, 130, 194, 485, 970, 1261, 2522, 6305, 12610, 50683, 101366, 253415, 506830, 658879, 1317758, 3294395, 4916251, 6588790, 9832502, 24581255, 49162510, 63911263, 127822526, 319556315, 639112630]

約数ペア:

[(1, 639112630), (2, 319556315), (5, 127822526), (10, 63911263), (13, 49162510), (26, 24581255), (65, 9832502), (97, 6588790), (130, 4916251), (194, 3294395), (485, 1317758), (970, 658879), (1261, 506830), (2522, 253415), (6305, 101366), (12610, 50683)]