639200944

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{569}}^1\times {\mathrm{1151}}^1$

素因数の和:1789

約数の個数: 40

約数和(自身を含む): 1262062080

約数和(自身を除く): 622861136

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 569, 976, 1138, 1151, 2276, 2302, 4552, 4604, 9104, 9208, 18416, 34709, 69418, 70211, 138836, 140422, 277672, 280844, 555344, 561688, 654919, 1123376, 1309838, 2619676, 5239352, 10478704, 39950059, 79900118, 159800236, 319600472, 639200944]

約数ペア:

[(1, 639200944), (2, 319600472), (4, 159800236), (8, 79900118), (16, 39950059), (61, 10478704), (122, 5239352), (244, 2619676), (488, 1309838), (569, 1123376), (976, 654919), (1138, 561688), (1151, 555344), (2276, 280844), (2302, 277672), (4552, 140422), (4604, 138836), (9104, 70211), (9208, 69418), (18416, 34709)]