4378180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 9918720

約数和(自身を除く): 5540540

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 79, 85, 158, 163, 170, 316, 326, 340, 395, 652, 790, 815, 1343, 1580, 1630, 2686, 2771, 3260, 5372, 5542, 6715, 11084, 12877, 13430, 13855, 25754, 26860, 27710, 51508, 55420, 64385, 128770, 218909, 257540, 437818, 875636, 1094545, 2189090, 4378180]

約数ペア:

[(1, 4378180), (2, 2189090), (4, 1094545), (5, 875636), (10, 437818), (17, 257540), (20, 218909), (34, 128770), (68, 64385), (79, 55420), (85, 51508), (158, 27710), (163, 26860), (170, 25754), (316, 13855), (326, 13430), (340, 12877), (395, 11084), (652, 6715), (790, 5542), (815, 5372), (1343, 3260), (1580, 2771), (1630, 2686)]