5420840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2557}}^1$

素因数の和:2621

約数の個数: 32

約数和(自身を含む): 12431880

約数和(自身を除く): 7011040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 2557, 5114, 10228, 12785, 20456, 25570, 51140, 102280, 135521, 271042, 542084, 677605, 1084168, 1355210, 2710420, 5420840]

約数ペア:

[(1, 5420840), (2, 2710420), (4, 1355210), (5, 1084168), (8, 677605), (10, 542084), (20, 271042), (40, 135521), (53, 102280), (106, 51140), (212, 25570), (265, 20456), (424, 12785), (530, 10228), (1060, 5114), (2120, 2557)]