77964640

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37483}}^1$

素因数の和:37511

約数の個数: 48

約数和(自身を含む): 198365328

約数和(自身を除く): 120400688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 37483, 74966, 149932, 187415, 299864, 374830, 487279, 599728, 749660, 974558, 1199456, 1499320, 1949116, 2436395, 2998640, 3898232, 4872790, 5997280, 7796464, 9745580, 15592928, 19491160, 38982320, 77964640]

約数ペア:

[(1, 77964640), (2, 38982320), (4, 19491160), (5, 15592928), (8, 9745580), (10, 7796464), (13, 5997280), (16, 4872790), (20, 3898232), (26, 2998640), (32, 2436395), (40, 1949116), (52, 1499320), (65, 1199456), (80, 974558), (104, 749660), (130, 599728), (160, 487279), (208, 374830), (260, 299864), (416, 187415), (520, 149932), (1040, 74966), (2080, 37483)]