28443500

素因数分解:

$2^2\times 5^3\times {\mathrm{163}}^1\times {\mathrm{349}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 62680800

約数和(自身を除く): 34237300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 163, 250, 326, 349, 500, 652, 698, 815, 1396, 1630, 1745, 3260, 3490, 4075, 6980, 8150, 8725, 16300, 17450, 20375, 34900, 40750, 43625, 56887, 81500, 87250, 113774, 174500, 227548, 284435, 568870, 1137740, 1422175, 2844350, 5688700, 7110875, 14221750, 28443500]

約数ペア:

[(1, 28443500), (2, 14221750), (4, 7110875), (5, 5688700), (10, 2844350), (20, 1422175), (25, 1137740), (50, 568870), (100, 284435), (125, 227548), (163, 174500), (250, 113774), (326, 87250), (349, 81500), (500, 56887), (652, 43625), (698, 40750), (815, 34900), (1396, 20375), (1630, 17450), (1745, 16300), (3260, 8725), (3490, 8150), (4075, 6980)]