290548225

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{691}}^1$

素因数の和:862

約数の個数: 36

約数和(自身を含む): 399436240

約数和(自身を除く): 108888015

約数列:

[1, 5, 11, 25, 55, 121, 139, 275, 605, 691, 695, 1529, 3025, 3455, 3475, 7601, 7645, 16819, 17275, 38005, 38225, 83611, 84095, 96049, 190025, 418055, 420475, 480245, 1056539, 2090275, 2401225, 5282695, 11621929, 26413475, 58109645, 290548225]

約数ペア:

[(1, 290548225), (5, 58109645), (11, 26413475), (25, 11621929), (55, 5282695), (121, 2401225), (139, 2090275), (275, 1056539), (605, 480245), (691, 420475), (695, 418055), (1529, 190025), (3025, 96049), (3455, 84095), (3475, 83611), (7601, 38225), (7645, 38005), (16819, 17275)]