40113680

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1289}}^1$

素因数の和:1691

約数の個数: 40

約数和(自身を含む): 93576600

約数和(自身を除く): 53462920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1289, 1556, 1945, 2578, 3112, 3890, 5156, 6224, 6445, 7780, 10312, 12890, 15560, 20624, 25780, 31120, 51560, 103120, 501421, 1002842, 2005684, 2507105, 4011368, 5014210, 8022736, 10028420, 20056840, 40113680]

約数ペア:

[(1, 40113680), (2, 20056840), (4, 10028420), (5, 8022736), (8, 5014210), (10, 4011368), (16, 2507105), (20, 2005684), (40, 1002842), (80, 501421), (389, 103120), (778, 51560), (1289, 31120), (1556, 25780), (1945, 20624), (2578, 15560), (3112, 12890), (3890, 10312), (5156, 7780), (6224, 6445)]