8438620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{251}}^1$

素因数の和:342

約数の個数: 36

約数和(自身を含む): 18236232

約数和(自身を除く): 9797612

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 251, 410, 502, 820, 1004, 1255, 1681, 2510, 3362, 5020, 6724, 8405, 10291, 16810, 20582, 33620, 41164, 51455, 102910, 205820, 421931, 843862, 1687724, 2109655, 4219310, 8438620]

約数ペア:

[(1, 8438620), (2, 4219310), (4, 2109655), (5, 1687724), (10, 843862), (20, 421931), (41, 205820), (82, 102910), (164, 51455), (205, 41164), (251, 33620), (410, 20582), (502, 16810), (820, 10291), (1004, 8405), (1255, 6724), (1681, 5020), (2510, 3362)]