1621325950

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{521}}^1\times {\mathrm{571}}^1$

素因数の和:1213

約数の個数: 48

約数和(自身を含む): 3054514320

約数和(自身を除く): 1433188370

約数列:

[1, 2, 5, 10, 25, 50, 109, 218, 521, 545, 571, 1042, 1090, 1142, 2605, 2725, 2855, 5210, 5450, 5710, 13025, 14275, 26050, 28550, 56789, 62239, 113578, 124478, 283945, 297491, 311195, 567890, 594982, 622390, 1419725, 1487455, 1555975, 2839450, 2974910, 3111950, 7437275, 14874550, 32426519, 64853038, 162132595, 324265190, 810662975, 1621325950]

約数ペア:

[(1, 1621325950), (2, 810662975), (5, 324265190), (10, 162132595), (25, 64853038), (50, 32426519), (109, 14874550), (218, 7437275), (521, 3111950), (545, 2974910), (571, 2839450), (1042, 1555975), (1090, 1487455), (1142, 1419725), (2605, 622390), (2725, 594982), (2855, 567890), (5210, 311195), (5450, 297491), (5710, 283945), (13025, 124478), (14275, 113578), (26050, 62239), (28550, 56789)]