28970380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{613}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 64985760

約数和(自身を除く): 36015380

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 139, 170, 278, 340, 556, 613, 695, 1226, 1390, 2363, 2452, 2780, 3065, 4726, 6130, 9452, 10421, 11815, 12260, 20842, 23630, 41684, 47260, 52105, 85207, 104210, 170414, 208420, 340828, 426035, 852070, 1448519, 1704140, 2897038, 5794076, 7242595, 14485190, 28970380]

約数ペア:

[(1, 28970380), (2, 14485190), (4, 7242595), (5, 5794076), (10, 2897038), (17, 1704140), (20, 1448519), (34, 852070), (68, 426035), (85, 340828), (139, 208420), (170, 170414), (278, 104210), (340, 85207), (556, 52105), (613, 47260), (695, 41684), (1226, 23630), (1390, 20842), (2363, 12260), (2452, 11815), (2780, 10421), (3065, 9452), (4726, 6130)]