289802020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{1231}}^1$

素因数の和:1468

約数の個数: 48

約数和(自身を含む): 620928000

約数和(自身を除く): 331125980

約数列:

[1, 2, 4, 5, 10, 20, 79, 149, 158, 298, 316, 395, 596, 745, 790, 1231, 1490, 1580, 2462, 2980, 4924, 6155, 11771, 12310, 23542, 24620, 47084, 58855, 97249, 117710, 183419, 194498, 235420, 366838, 388996, 486245, 733676, 917095, 972490, 1834190, 1944980, 3668380, 14490101, 28980202, 57960404, 72450505, 144901010, 289802020]

約数ペア:

[(1, 289802020), (2, 144901010), (4, 72450505), (5, 57960404), (10, 28980202), (20, 14490101), (79, 3668380), (149, 1944980), (158, 1834190), (298, 972490), (316, 917095), (395, 733676), (596, 486245), (745, 388996), (790, 366838), (1231, 235420), (1490, 194498), (1580, 183419), (2462, 117710), (2980, 97249), (4924, 58855), (6155, 47084), (11771, 24620), (12310, 23542)]