2008013720

素因数分解:

$2^3\times 5^1\times {\mathrm{3617}}^1\times {\mathrm{13879}}^1$

素因数の和:17507

約数の個数: 32

約数和(自身を含む): 4519605600

約数和(自身を除く): 2511591880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3617, 7234, 13879, 14468, 18085, 27758, 28936, 36170, 55516, 69395, 72340, 111032, 138790, 144680, 277580, 555160, 50200343, 100400686, 200801372, 251001715, 401602744, 502003430, 1004006860, 2008013720]

約数ペア:

[(1, 2008013720), (2, 1004006860), (4, 502003430), (5, 401602744), (8, 251001715), (10, 200801372), (20, 100400686), (40, 50200343), (3617, 555160), (7234, 277580), (13879, 144680), (14468, 138790), (18085, 111032), (27758, 72340), (28936, 69395), (36170, 55516)]