80227360

素因数分解:

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

素因数の和:1693

約数の個数: 48

約数和(自身を含む): 190171800

約数和(自身を除く): 109944440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 389, 778, 1289, 1556, 1945, 2578, 3112, 3890, 5156, 6224, 6445, 7780, 10312, 12448, 12890, 15560, 20624, 25780, 31120, 41248, 51560, 62240, 103120, 206240, 501421, 1002842, 2005684, 2507105, 4011368, 5014210, 8022736, 10028420, 16045472, 20056840, 40113680, 80227360]

約数ペア:

[(1, 80227360), (2, 40113680), (4, 20056840), (5, 16045472), (8, 10028420), (10, 8022736), (16, 5014210), (20, 4011368), (32, 2507105), (40, 2005684), (80, 1002842), (160, 501421), (389, 206240), (778, 103120), (1289, 62240), (1556, 51560), (1945, 41248), (2578, 31120), (3112, 25780), (3890, 20624), (5156, 15560), (6224, 12890), (6445, 12448), (7780, 10312)]