470840

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 1080000

約数和(自身を除く): 609160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 149, 158, 298, 316, 395, 596, 632, 745, 790, 1192, 1490, 1580, 2980, 3160, 5960, 11771, 23542, 47084, 58855, 94168, 117710, 235420, 470840]

約数ペア:

[(1, 470840), (2, 235420), (4, 117710), (5, 94168), (8, 58855), (10, 47084), (20, 23542), (40, 11771), (79, 5960), (149, 3160), (158, 2980), (298, 1580), (316, 1490), (395, 1192), (596, 790), (632, 745)]