28553540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{613}}^1$

素因数の和:776

約数の個数: 48

約数和(自身を含む): 64057392

約数和(自身を除く): 35503852

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 137, 170, 274, 340, 548, 613, 685, 1226, 1370, 2329, 2452, 2740, 3065, 4658, 6130, 9316, 10421, 11645, 12260, 20842, 23290, 41684, 46580, 52105, 83981, 104210, 167962, 208420, 335924, 419905, 839810, 1427677, 1679620, 2855354, 5710708, 7138385, 14276770, 28553540]

約数ペア:

[(1, 28553540), (2, 14276770), (4, 7138385), (5, 5710708), (10, 2855354), (17, 1679620), (20, 1427677), (34, 839810), (68, 419905), (85, 335924), (137, 208420), (170, 167962), (274, 104210), (340, 83981), (548, 52105), (613, 46580), (685, 41684), (1226, 23290), (1370, 20842), (2329, 12260), (2452, 11645), (2740, 10421), (3065, 9316), (4658, 6130)]