20245168

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{20743}}^1$

素因数の和:20812

約数の個数: 20

約数和(自身を含む): 39869968

約数和(自身を除く): 19624800

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 20743, 41486, 82972, 165944, 331888, 1265323, 2530646, 5061292, 10122584, 20245168]

約数ペア:

[(1, 20245168), (2, 10122584), (4, 5061292), (8, 2530646), (16, 1265323), (61, 331888), (122, 165944), (244, 82972), (488, 41486), (976, 20743)]