20078275

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{397}}^1$

素因数の和:448

約数の個数: 36

約数和(自身を含む): 30302128

約数和(自身を除く): 10223853

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 289, 397, 425, 595, 1445, 1985, 2023, 2779, 2975, 6749, 7225, 9925, 10115, 13895, 33745, 47243, 50575, 69475, 114733, 168725, 236215, 573665, 803131, 1181075, 2868325, 4015655, 20078275]

約数ペア:

[(1, 20078275), (5, 4015655), (7, 2868325), (17, 1181075), (25, 803131), (35, 573665), (85, 236215), (119, 168725), (175, 114733), (289, 69475), (397, 50575), (425, 47243), (595, 33745), (1445, 13895), (1985, 10115), (2023, 9925), (2779, 7225), (2975, 6749)]