281540620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{230771}}^1$

素因数の和:230841

約数の個数: 24

約数和(自身を含む): 600930288

約数和(自身を除く): 319389668

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 230771, 461542, 923084, 1153855, 2307710, 4615420, 14077031, 28154062, 56308124, 70385155, 140770310, 281540620]

約数ペア:

[(1, 281540620), (2, 140770310), (4, 70385155), (5, 56308124), (10, 28154062), (20, 14077031), (61, 4615420), (122, 2307710), (244, 1153855), (305, 923084), (610, 461542), (1220, 230771)]