221566250

素因数分解:

$2^1\times 5^4\times {\mathrm{157}}^1\times {\mathrm{1129}}^1$

素因数の和:1308

約数の個数: 40

約数和(自身を含む): 418319220

約数和(自身を除く): 196752970

約数列:

[1, 2, 5, 10, 25, 50, 125, 157, 250, 314, 625, 785, 1129, 1250, 1570, 2258, 3925, 5645, 7850, 11290, 19625, 28225, 39250, 56450, 98125, 141125, 177253, 196250, 282250, 354506, 705625, 886265, 1411250, 1772530, 4431325, 8862650, 22156625, 44313250, 110783125, 221566250]

約数ペア:

[(1, 221566250), (2, 110783125), (5, 44313250), (10, 22156625), (25, 8862650), (50, 4431325), (125, 1772530), (157, 1411250), (250, 886265), (314, 705625), (625, 354506), (785, 282250), (1129, 196250), (1250, 177253), (1570, 141125), (2258, 98125), (3925, 56450), (5645, 39250), (7850, 28225), (11290, 19625)]