28990840

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{4049}}^1$

素因数の和:4239

約数の個数: 32

約数和(自身を含む): 65610000

約数和(自身を除く): 36619160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 4049, 7160, 8098, 16196, 20245, 32392, 40490, 80980, 161960, 724771, 1449542, 2899084, 3623855, 5798168, 7247710, 14495420, 28990840]

約数ペア:

[(1, 28990840), (2, 14495420), (4, 7247710), (5, 5798168), (8, 3623855), (10, 2899084), (20, 1449542), (40, 724771), (179, 161960), (358, 80980), (716, 40490), (895, 32392), (1432, 20245), (1790, 16196), (3580, 8098), (4049, 7160)]