18790870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{811}}^1$

素因数の和:1156

約数の個数: 32

約数和(自身を含む): 38820096

約数和(自身を除く): 20029226

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 331, 662, 811, 1622, 1655, 2317, 3310, 4055, 4634, 5677, 8110, 11354, 11585, 23170, 28385, 56770, 268441, 536882, 1342205, 1879087, 2684410, 3758174, 9395435, 18790870]

約数ペア:

[(1, 18790870), (2, 9395435), (5, 3758174), (7, 2684410), (10, 1879087), (14, 1342205), (35, 536882), (70, 268441), (331, 56770), (662, 28385), (811, 23170), (1622, 11585), (1655, 11354), (2317, 8110), (3310, 5677), (4055, 4634)]