289725080

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{249763}}^1$

素因数の和:249803

約数の個数: 32

約数和(自身を含む): 674362800

約数和(自身を除く): 384637720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 249763, 499526, 999052, 1248815, 1998104, 2497630, 4995260, 7243127, 9990520, 14486254, 28972508, 36215635, 57945016, 72431270, 144862540, 289725080]

約数ペア:

[(1, 289725080), (2, 144862540), (4, 72431270), (5, 57945016), (8, 36215635), (10, 28972508), (20, 14486254), (29, 9990520), (40, 7243127), (58, 4995260), (116, 2497630), (145, 1998104), (232, 1248815), (290, 999052), (580, 499526), (1160, 249763)]