71980018

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{7487}}^1$

素因数の和:7542

約数の個数: 32

約数和(自身を含む): 129392640

約数和(自身を除く): 57412622

約数列:

[1, 2, 11, 19, 22, 23, 38, 46, 209, 253, 418, 437, 506, 874, 4807, 7487, 9614, 14974, 82357, 142253, 164714, 172201, 284506, 344402, 1564783, 1894211, 3129566, 3271819, 3788422, 6543638, 35990009, 71980018]

約数ペア:

[(1, 71980018), (2, 35990009), (11, 6543638), (19, 3788422), (22, 3271819), (23, 3129566), (38, 1894211), (46, 1564783), (209, 344402), (253, 284506), (418, 172201), (437, 164714), (506, 142253), (874, 82357), (4807, 14974), (7487, 9614)]