7388420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 16908528

約数和(自身を除く): 9520108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 181, 260, 314, 362, 628, 724, 785, 905, 1570, 1810, 2041, 2353, 3140, 3620, 4082, 4706, 8164, 9412, 10205, 11765, 20410, 23530, 28417, 40820, 47060, 56834, 113668, 142085, 284170, 369421, 568340, 738842, 1477684, 1847105, 3694210, 7388420]

約数ペア:

[(1, 7388420), (2, 3694210), (4, 1847105), (5, 1477684), (10, 738842), (13, 568340), (20, 369421), (26, 284170), (52, 142085), (65, 113668), (130, 56834), (157, 47060), (181, 40820), (260, 28417), (314, 23530), (362, 20410), (628, 11765), (724, 10205), (785, 9412), (905, 8164), (1570, 4706), (1810, 4082), (2041, 3620), (2353, 3140)]