28913240

素因数分解:

$2^3\times 5^1\times {\mathrm{293}}^1\times {\mathrm{2467}}^1$

素因数の和:2771

約数の個数: 32

約数和(自身を含む): 65303280

約数和(自身を除く): 36390040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 2344, 2467, 2930, 4934, 5860, 9868, 11720, 12335, 19736, 24670, 49340, 98680, 722831, 1445662, 2891324, 3614155, 5782648, 7228310, 14456620, 28913240]

約数ペア:

[(1, 28913240), (2, 14456620), (4, 7228310), (5, 5782648), (8, 3614155), (10, 2891324), (20, 1445662), (40, 722831), (293, 98680), (586, 49340), (1172, 24670), (1465, 19736), (2344, 12335), (2467, 11720), (2930, 9868), (4934, 5860)]