20202455

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6343}}^1$

素因数の和:6375

約数の個数: 24

約数和(自身を含む): 30375072

約数和(自身を除く): 10172617

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 6343, 31715, 44401, 82459, 222005, 310807, 412295, 577213, 1554035, 2886065, 4040491, 20202455]

約数ペア:

[(1, 20202455), (5, 4040491), (7, 2886065), (13, 1554035), (35, 577213), (49, 412295), (65, 310807), (91, 222005), (245, 82459), (455, 44401), (637, 31715), (3185, 6343)]