126777980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{2281}}^1$

素因数の和:2694

約数の個数: 48

約数和(自身を含む): 305167296

約数和(自身を除く): 178389316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 397, 794, 1588, 1985, 2281, 2779, 3970, 4562, 5558, 7940, 9124, 11116, 11405, 13895, 15967, 22810, 27790, 31934, 45620, 55580, 63868, 79835, 159670, 319340, 905557, 1811114, 3622228, 4527785, 6338899, 9055570, 12677798, 18111140, 25355596, 31694495, 63388990, 126777980]

約数ペア:

[(1, 126777980), (2, 63388990), (4, 31694495), (5, 25355596), (7, 18111140), (10, 12677798), (14, 9055570), (20, 6338899), (28, 4527785), (35, 3622228), (70, 1811114), (140, 905557), (397, 319340), (794, 159670), (1588, 79835), (1985, 63868), (2281, 55580), (2779, 45620), (3970, 31934), (4562, 27790), (5558, 22810), (7940, 15967), (9124, 13895), (11116, 11405)]