77981510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{1597}}^1$

素因数の和:1880

約数の個数: 32

約数和(自身を含む): 148422240

約数和(自身を除く): 70440730

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 257, 514, 1285, 1597, 2570, 3194, 4883, 7985, 9766, 15970, 24415, 30343, 48830, 60686, 151715, 303430, 410429, 820858, 2052145, 4104290, 7798151, 15596302, 38990755, 77981510]

約数ペア:

[(1, 77981510), (2, 38990755), (5, 15596302), (10, 7798151), (19, 4104290), (38, 2052145), (95, 820858), (190, 410429), (257, 303430), (514, 151715), (1285, 60686), (1597, 48830), (2570, 30343), (3194, 24415), (4883, 15970), (7985, 9766)]