9002900

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:668

約数の個数: 36

約数和(自身を含む): 19678428

約数和(自身を除く): 10675528

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 457, 788, 914, 985, 1828, 1970, 2285, 3940, 4570, 4925, 9140, 9850, 11425, 19700, 22850, 45700, 90029, 180058, 360116, 450145, 900290, 1800580, 2250725, 4501450, 9002900]

約数ペア:

[(1, 9002900), (2, 4501450), (4, 2250725), (5, 1800580), (10, 900290), (20, 450145), (25, 360116), (50, 180058), (100, 90029), (197, 45700), (394, 22850), (457, 19700), (788, 11425), (914, 9850), (985, 9140), (1828, 4925), (1970, 4570), (2285, 3940)]