20442160

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{15031}}^1$

素因数の和:15061

約数の個数: 40

約数和(自身を含む): 50327136

約数和(自身を除く): 29884976

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 15031, 30062, 60124, 75155, 120248, 150310, 240496, 255527, 300620, 511054, 601240, 1022108, 1202480, 1277635, 2044216, 2555270, 4088432, 5110540, 10221080, 20442160]

約数ペア:

[(1, 20442160), (2, 10221080), (4, 5110540), (5, 4088432), (8, 2555270), (10, 2044216), (16, 1277635), (17, 1202480), (20, 1022108), (34, 601240), (40, 511054), (68, 300620), (80, 255527), (85, 240496), (136, 150310), (170, 120248), (272, 75155), (340, 60124), (680, 30062), (1360, 15031)]