20178390854

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{6547}}^1\times {\mathrm{49711}}^1$

素因数の和:56291

約数の個数: 16

約数和(自身を含む): 31249360896

約数和(自身を除く): 11070970042

約数列:

[1, 2, 31, 62, 6547, 13094, 49711, 99422, 202957, 405914, 1541041, 3082082, 325457917, 650915834, 10089195427, 20178390854]

約数ペア:

[(1, 20178390854), (2, 10089195427), (31, 650915834), (62, 325457917), (6547, 3082082), (13094, 1541041), (49711, 405914), (99422, 202957)]