179218780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{3499}}^1$

素因数の和:3718

約数の個数: 48

約数和(自身を含む): 407484000

約数和(自身を除く): 228265220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 394, 788, 985, 1970, 2561, 3499, 3940, 5122, 6998, 10244, 12805, 13996, 17495, 25610, 34990, 45487, 51220, 69980, 90974, 181948, 227435, 454870, 689303, 909740, 1378606, 2757212, 3446515, 6893030, 8960939, 13786060, 17921878, 35843756, 44804695, 89609390, 179218780]

約数ペア:

[(1, 179218780), (2, 89609390), (4, 44804695), (5, 35843756), (10, 17921878), (13, 13786060), (20, 8960939), (26, 6893030), (52, 3446515), (65, 2757212), (130, 1378606), (197, 909740), (260, 689303), (394, 454870), (788, 227435), (985, 181948), (1970, 90974), (2561, 69980), (3499, 51220), (3940, 45487), (5122, 34990), (6998, 25610), (10244, 17495), (12805, 13996)]