51292840

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{7867}}^1$

素因数の和:8041

約数の個数: 32

約数和(自身を含む): 116131680

約数和(自身を除く): 64838840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 7867, 15734, 31468, 39335, 62936, 78670, 157340, 314680, 1282321, 2564642, 5129284, 6411605, 10258568, 12823210, 25646420, 51292840]

約数ペア:

[(1, 51292840), (2, 25646420), (4, 12823210), (5, 10258568), (8, 6411605), (10, 5129284), (20, 2564642), (40, 1282321), (163, 314680), (326, 157340), (652, 78670), (815, 62936), (1304, 39335), (1630, 31468), (3260, 15734), (6520, 7867)]