401636

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 24

約数和(自身を含む): 752640

約数和(自身を除く): 351004

約数列:

[1, 2, 4, 31, 41, 62, 79, 82, 124, 158, 164, 316, 1271, 2449, 2542, 3239, 4898, 5084, 6478, 9796, 12956, 100409, 200818, 401636]

約数ペア:

[(1, 401636), (2, 200818), (4, 100409), (31, 12956), (41, 9796), (62, 6478), (79, 5084), (82, 4898), (124, 3239), (158, 2542), (164, 2449), (316, 1271)]