284421880

素因数分解:

$2^3\times 5^1\times {\mathrm{1979}}^1\times {\mathrm{3593}}^1$

素因数の和:5583

約数の個数: 32

約数和(自身を含む): 640450800

約数和(自身を除く): 356028920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1979, 3593, 3958, 7186, 7916, 9895, 14372, 15832, 17965, 19790, 28744, 35930, 39580, 71860, 79160, 143720, 7110547, 14221094, 28442188, 35552735, 56884376, 71105470, 142210940, 284421880]

約数ペア:

[(1, 284421880), (2, 142210940), (4, 71105470), (5, 56884376), (8, 35552735), (10, 28442188), (20, 14221094), (40, 7110547), (1979, 143720), (3593, 79160), (3958, 71860), (7186, 39580), (7916, 35930), (9895, 28744), (14372, 19790), (15832, 17965)]