20165380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16529}}^1$

素因数の和:16599

約数の個数: 24

約数和(自身を含む): 43044120

約数和(自身を除く): 22878740

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 16529, 33058, 66116, 82645, 165290, 330580, 1008269, 2016538, 4033076, 5041345, 10082690, 20165380]

約数ペア:

[(1, 20165380), (2, 10082690), (4, 5041345), (5, 4033076), (10, 2016538), (20, 1008269), (61, 330580), (122, 165290), (244, 82645), (305, 66116), (610, 33058), (1220, 16529)]