121025680

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3889}}^1$

素因数の和:4291

約数の個数: 40

約数和(自身を含む): 282180600

約数和(自身を除く): 161154920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 3112, 3889, 3890, 6224, 7778, 7780, 15556, 15560, 19445, 31112, 31120, 38890, 62224, 77780, 155560, 311120, 1512821, 3025642, 6051284, 7564105, 12102568, 15128210, 24205136, 30256420, 60512840, 121025680]

約数ペア:

[(1, 121025680), (2, 60512840), (4, 30256420), (5, 24205136), (8, 15128210), (10, 12102568), (16, 7564105), (20, 6051284), (40, 3025642), (80, 1512821), (389, 311120), (778, 155560), (1556, 77780), (1945, 62224), (3112, 38890), (3889, 31120), (3890, 31112), (6224, 19445), (7778, 15560), (7780, 15556)]