31405840

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{13537}}^1$

素因数の和:13579

約数の個数: 40

約数和(自身を含む): 75542040

約数和(自身を除く): 44136200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 13537, 27074, 54148, 67685, 108296, 135370, 216592, 270740, 392573, 541480, 785146, 1082960, 1570292, 1962865, 3140584, 3925730, 6281168, 7851460, 15702920, 31405840]

約数ペア:

[(1, 31405840), (2, 15702920), (4, 7851460), (5, 6281168), (8, 3925730), (10, 3140584), (16, 1962865), (20, 1570292), (29, 1082960), (40, 785146), (58, 541480), (80, 392573), (116, 270740), (145, 216592), (232, 135370), (290, 108296), (464, 67685), (580, 54148), (1160, 27074), (2320, 13537)]