65488040

素因数分解:

$2^3\times 5^1\times {\mathrm{769}}^1\times {\mathrm{2129}}^1$

素因数の和:2909

約数の個数: 32

約数和(自身を含む): 147609000

約数和(自身を除く): 82120960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 769, 1538, 2129, 3076, 3845, 4258, 6152, 7690, 8516, 10645, 15380, 17032, 21290, 30760, 42580, 85160, 1637201, 3274402, 6548804, 8186005, 13097608, 16372010, 32744020, 65488040]

約数ペア:

[(1, 65488040), (2, 32744020), (4, 16372010), (5, 13097608), (8, 8186005), (10, 6548804), (20, 3274402), (40, 1637201), (769, 85160), (1538, 42580), (2129, 30760), (3076, 21290), (3845, 17032), (4258, 15380), (6152, 10645), (7690, 8516)]