20746425

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{919}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 40156160

約数和(自身を除く): 19409735

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 43, 75, 105, 129, 175, 215, 301, 525, 645, 903, 919, 1075, 1505, 2757, 3225, 4515, 4595, 6433, 7525, 13785, 19299, 22575, 22975, 32165, 39517, 68925, 96495, 118551, 160825, 197585, 276619, 482475, 592755, 829857, 987925, 1383095, 2963775, 4149285, 6915475, 20746425]

約数ペア:

[(1, 20746425), (3, 6915475), (5, 4149285), (7, 2963775), (15, 1383095), (21, 987925), (25, 829857), (35, 592755), (43, 482475), (75, 276619), (105, 197585), (129, 160825), (175, 118551), (215, 96495), (301, 68925), (525, 39517), (645, 32165), (903, 22975), (919, 22575), (1075, 19299), (1505, 13785), (2757, 7525), (3225, 6433), (4515, 4595)]