438795890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{8677}}^1$

素因数の和:9086

約数の個数: 32

約数和(自身を含む): 852873840

約数和(自身を除く): 414077950

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 389, 778, 1945, 3890, 5057, 8677, 10114, 17354, 25285, 43385, 50570, 86770, 112801, 225602, 564005, 1128010, 3375353, 6750706, 16876765, 33753530, 43879589, 87759178, 219397945, 438795890]

約数ペア:

[(1, 438795890), (2, 219397945), (5, 87759178), (10, 43879589), (13, 33753530), (26, 16876765), (65, 6750706), (130, 3375353), (389, 1128010), (778, 564005), (1945, 225602), (3890, 112801), (5057, 86770), (8677, 50570), (10114, 43385), (17354, 25285)]