71978698

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 121564800

約数和(自身を除く): 49586102

約数列:

[1, 2, 11, 22, 41, 82, 199, 398, 401, 451, 802, 902, 2189, 4378, 4411, 8159, 8822, 16318, 16441, 32882, 79799, 89749, 159598, 179498, 180851, 361702, 877789, 1755578, 3271759, 6543518, 35989349, 71978698]

約数ペア:

[(1, 71978698), (2, 35989349), (11, 6543518), (22, 3271759), (41, 1755578), (82, 877789), (199, 361702), (398, 180851), (401, 179498), (451, 159598), (802, 89749), (902, 79799), (2189, 32882), (4378, 16441), (4411, 16318), (8159, 8822)]