490492040

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{155219}}^1$

素因数の和:155309

約数の個数: 32

約数和(自身を含む): 1117584000

約数和(自身を除く): 627091960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 155219, 310438, 620876, 776095, 1241752, 1552190, 3104380, 6208760, 12262301, 24524602, 49049204, 61311505, 98098408, 122623010, 245246020, 490492040]

約数ペア:

[(1, 490492040), (2, 245246020), (4, 122623010), (5, 98098408), (8, 61311505), (10, 49049204), (20, 24524602), (40, 12262301), (79, 6208760), (158, 3104380), (316, 1552190), (395, 1241752), (632, 776095), (790, 620876), (1580, 310438), (3160, 155219)]