20039020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32321}}^1$

素因数の和:32361

約数の個数: 24

約数和(自身を含む): 43440768

約数和(自身を除く): 23401748

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 32321, 64642, 129284, 161605, 323210, 646420, 1001951, 2003902, 4007804, 5009755, 10019510, 20039020]

約数ペア:

[(1, 20039020), (2, 10019510), (4, 5009755), (5, 4007804), (10, 2003902), (20, 1001951), (31, 646420), (62, 323210), (124, 161605), (155, 129284), (310, 64642), (620, 32321)]