2430980

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{617}}^1$

素因数の和:823

約数の個数: 24

約数和(自身を含む): 5139288

約数和(自身を除く): 2708308

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 617, 788, 985, 1234, 1970, 2468, 3085, 3940, 6170, 12340, 121549, 243098, 486196, 607745, 1215490, 2430980]

約数ペア:

[(1, 2430980), (2, 1215490), (4, 607745), (5, 486196), (10, 243098), (20, 121549), (197, 12340), (394, 6170), (617, 3940), (788, 3085), (985, 2468), (1234, 1970)]