642971354

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1\times {\mathrm{691}}^1$

素因数の和:1046

約数の個数: 32

約数和(自身を含む): 1019399040

約数和(自身を除く): 376427686

約数列:

[1, 2, 29, 58, 61, 122, 263, 526, 691, 1382, 1769, 3538, 7627, 15254, 16043, 20039, 32086, 40078, 42151, 84302, 181733, 363466, 465247, 930494, 1222379, 2444758, 5270257, 10540514, 11085713, 22171426, 321485677, 642971354]

約数ペア:

[(1, 642971354), (2, 321485677), (29, 22171426), (58, 11085713), (61, 10540514), (122, 5270257), (263, 2444758), (526, 1222379), (691, 930494), (1382, 465247), (1769, 363466), (3538, 181733), (7627, 84302), (15254, 42151), (16043, 40078), (20039, 32086)]