78914990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^5$

素因数の和:76

約数の個数: 72

約数和(自身を含む): 181762056

約数和(自身を除く): 102847066

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 121, 154, 242, 245, 385, 490, 539, 605, 770, 847, 1078, 1210, 1331, 1694, 2662, 2695, 4235, 5390, 5929, 6655, 8470, 9317, 11858, 13310, 14641, 18634, 29282, 29645, 46585, 59290, 65219, 73205, 93170, 102487, 130438, 146410, 161051, 204974, 322102, 326095, 512435, 652190, 717409, 805255, 1024870, 1127357, 1434818, 1610510, 2254714, 3587045, 5636785, 7174090, 7891499, 11273570, 15782998, 39457495, 78914990]

約数ペア:

[(1, 78914990), (2, 39457495), (5, 15782998), (7, 11273570), (10, 7891499), (11, 7174090), (14, 5636785), (22, 3587045), (35, 2254714), (49, 1610510), (55, 1434818), (70, 1127357), (77, 1024870), (98, 805255), (110, 717409), (121, 652190), (154, 512435), (242, 326095), (245, 322102), (385, 204974), (490, 161051), (539, 146410), (605, 130438), (770, 102487), (847, 93170), (1078, 73205), (1210, 65219), (1331, 59290), (1694, 46585), (2662, 29645), (2695, 29282), (4235, 18634), (5390, 14641), (5929, 13310), (6655, 11858), (8470, 9317)]