20039810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{811}}^1$

素因数の和:1178

約数の個数: 32

約数和(自身を含む): 41392512

約数和(自身を除く): 21352702

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 353, 706, 811, 1622, 1765, 2471, 3530, 4055, 4942, 5677, 8110, 11354, 12355, 24710, 28385, 56770, 286283, 572566, 1431415, 2003981, 2862830, 4007962, 10019905, 20039810]

約数ペア:

[(1, 20039810), (2, 10019905), (5, 4007962), (7, 2862830), (10, 2003981), (14, 1431415), (35, 572566), (70, 286283), (353, 56770), (706, 28385), (811, 24710), (1622, 12355), (1765, 11354), (2471, 8110), (3530, 5677), (4055, 4942)]