20295975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{577}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 38989568

約数和(自身を除く): 18693593

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 67, 75, 105, 175, 201, 335, 469, 525, 577, 1005, 1407, 1675, 1731, 2345, 2885, 4039, 5025, 7035, 8655, 11725, 12117, 14425, 20195, 35175, 38659, 43275, 60585, 100975, 115977, 193295, 270613, 302925, 579885, 811839, 966475, 1353065, 2899425, 4059195, 6765325, 20295975]

約数ペア:

[(1, 20295975), (3, 6765325), (5, 4059195), (7, 2899425), (15, 1353065), (21, 966475), (25, 811839), (35, 579885), (67, 302925), (75, 270613), (105, 193295), (175, 115977), (201, 100975), (335, 60585), (469, 43275), (525, 38659), (577, 35175), (1005, 20195), (1407, 14425), (1675, 12117), (1731, 11725), (2345, 8655), (2885, 7035), (4039, 5025)]