20484020

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1583}}^1$

素因数の和:2239

約数の個数: 24

約数和(自身を含む): 43110144

約数和(自身を除く): 22626124

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 1583, 2588, 3166, 3235, 6332, 6470, 7915, 12940, 15830, 31660, 1024201, 2048402, 4096804, 5121005, 10242010, 20484020]

約数ペア:

[(1, 20484020), (2, 10242010), (4, 5121005), (5, 4096804), (10, 2048402), (20, 1024201), (647, 31660), (1294, 15830), (1583, 12940), (2588, 7915), (3166, 6470), (3235, 6332)]