251639128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{51481}}^1$

素因数の和:51547

約数の個数: 32

約数和(自身を含む): 518938560

約数和(自身を除く): 267299432

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4888, 51481, 102962, 205924, 411848, 669253, 1338506, 2419607, 2677012, 4839214, 5354024, 9678428, 19356856, 31454891, 62909782, 125819564, 251639128]

約数ペア:

[(1, 251639128), (2, 125819564), (4, 62909782), (8, 31454891), (13, 19356856), (26, 9678428), (47, 5354024), (52, 4839214), (94, 2677012), (104, 2419607), (188, 1338506), (376, 669253), (611, 411848), (1222, 205924), (2444, 102962), (4888, 51481)]