408020964

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{2615519}}^1$

素因数の和:2615539

約数の個数: 24

約数和(自身を含む): 1025283840

約数和(自身を除く): 617262876

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 2615519, 5231038, 7846557, 10462076, 15693114, 31386228, 34001747, 68003494, 102005241, 136006988, 204010482, 408020964]

約数ペア:

[(1, 408020964), (2, 204010482), (3, 136006988), (4, 102005241), (6, 68003494), (12, 34001747), (13, 31386228), (26, 15693114), (39, 10462076), (52, 7846557), (78, 5231038), (156, 2615519)]