81380664

素因数分解:

$2^3\times 3^2\times {\mathrm{1130287}}^1$

素因数の和:1130299

約数の個数: 24

約数和(自身を含む): 220406160

約数和(自身を除く): 139025496

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 1130287, 2260574, 3390861, 4521148, 6781722, 9042296, 10172583, 13563444, 20345166, 27126888, 40690332, 81380664]

約数ペア:

[(1, 81380664), (2, 40690332), (3, 27126888), (4, 20345166), (6, 13563444), (8, 10172583), (9, 9042296), (12, 6781722), (18, 4521148), (24, 3390861), (36, 2260574), (72, 1130287)]