128251000

素因数分解:

$2^3\times 5^3\times {\mathrm{277}}^1\times {\mathrm{463}}^1$

素因数の和:761

約数の個数: 64

約数和(自身を含む): 301841280

約数和(自身を除く): 173590280

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 277, 463, 500, 554, 926, 1000, 1108, 1385, 1852, 2216, 2315, 2770, 3704, 4630, 5540, 6925, 9260, 11080, 11575, 13850, 18520, 23150, 27700, 34625, 46300, 55400, 57875, 69250, 92600, 115750, 128251, 138500, 231500, 256502, 277000, 463000, 513004, 641255, 1026008, 1282510, 2565020, 3206275, 5130040, 6412550, 12825100, 16031375, 25650200, 32062750, 64125500, 128251000]

約数ペア:

[(1, 128251000), (2, 64125500), (4, 32062750), (5, 25650200), (8, 16031375), (10, 12825100), (20, 6412550), (25, 5130040), (40, 3206275), (50, 2565020), (100, 1282510), (125, 1026008), (200, 641255), (250, 513004), (277, 463000), (463, 277000), (500, 256502), (554, 231500), (926, 138500), (1000, 128251), (1108, 115750), (1385, 92600), (1852, 69250), (2216, 57875), (2315, 55400), (2770, 46300), (3704, 34625), (4630, 27700), (5540, 23150), (6925, 18520), (9260, 13850), (11080, 11575)]