18189235

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 24572160

約数和(自身を除く): 6382925

約数列:

[1, 5, 17, 29, 47, 85, 145, 157, 235, 493, 785, 799, 1363, 2465, 2669, 3995, 4553, 6815, 7379, 13345, 22765, 23171, 36895, 77401, 115855, 125443, 213991, 387005, 627215, 1069955, 3637847, 18189235]

約数ペア:

[(1, 18189235), (5, 3637847), (17, 1069955), (29, 627215), (47, 387005), (85, 213991), (145, 125443), (157, 115855), (235, 77401), (493, 36895), (785, 23171), (799, 22765), (1363, 13345), (2465, 7379), (2669, 6815), (3995, 4553)]