8908040

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2819}}^1$

素因数の和:2909

約数の個数: 32

約数和(自身を含む): 20304000

約数和(自身を除く): 11395960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 2819, 3160, 5638, 11276, 14095, 22552, 28190, 56380, 112760, 222701, 445402, 890804, 1113505, 1781608, 2227010, 4454020, 8908040]

約数ペア:

[(1, 8908040), (2, 4454020), (4, 2227010), (5, 1781608), (8, 1113505), (10, 890804), (20, 445402), (40, 222701), (79, 112760), (158, 56380), (316, 28190), (395, 22552), (632, 14095), (790, 11276), (1580, 5638), (2819, 3160)]