870866620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{20549}}^1$

素因数の和:20734

約数の個数: 48

約数和(自身を含む): 1981677600

約数和(自身を除く): 1110810980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 163, 260, 326, 652, 815, 1630, 2119, 3260, 4238, 8476, 10595, 20549, 21190, 41098, 42380, 82196, 102745, 205490, 267137, 410980, 534274, 1068548, 1335685, 2671370, 3349487, 5342740, 6698974, 13397948, 16747435, 33494870, 43543331, 66989740, 87086662, 174173324, 217716655, 435433310, 870866620]

約数ペア:

[(1, 870866620), (2, 435433310), (4, 217716655), (5, 174173324), (10, 87086662), (13, 66989740), (20, 43543331), (26, 33494870), (52, 16747435), (65, 13397948), (130, 6698974), (163, 5342740), (260, 3349487), (326, 2671370), (652, 1335685), (815, 1068548), (1630, 534274), (2119, 410980), (3260, 267137), (4238, 205490), (8476, 102745), (10595, 82196), (20549, 42380), (21190, 41098)]