80909008

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{1039}}^1$

素因数の和:1235

約数の個数: 40

約数和(自身を含む): 163005440

約数和(自身を除く): 82096432

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 157, 248, 314, 496, 628, 1039, 1256, 2078, 2512, 4156, 4867, 8312, 9734, 16624, 19468, 32209, 38936, 64418, 77872, 128836, 163123, 257672, 326246, 515344, 652492, 1304984, 2609968, 5056813, 10113626, 20227252, 40454504, 80909008]

約数ペア:

[(1, 80909008), (2, 40454504), (4, 20227252), (8, 10113626), (16, 5056813), (31, 2609968), (62, 1304984), (124, 652492), (157, 515344), (248, 326246), (314, 257672), (496, 163123), (628, 128836), (1039, 77872), (1256, 64418), (2078, 38936), (2512, 32209), (4156, 19468), (4867, 16624), (8312, 9734)]