9420980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11489}}^1$

素因数の和:11539

約数の個数: 24

約数和(自身を含む): 20268360

約数和(自身を除く): 10847380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 11489, 22978, 45956, 57445, 114890, 229780, 471049, 942098, 1884196, 2355245, 4710490, 9420980]

約数ペア:

[(1, 9420980), (2, 4710490), (4, 2355245), (5, 1884196), (10, 942098), (20, 471049), (41, 229780), (82, 114890), (164, 57445), (205, 45956), (410, 22978), (820, 11489)]