85718690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{4139}}^1$

素因数の和:4274

約数の個数: 32

約数和(自身を含む): 163944000

約数和(自身を除く): 78225310

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 545, 1090, 2071, 4139, 4142, 8278, 10355, 20695, 20710, 41390, 78641, 157282, 393205, 451151, 786410, 902302, 2255755, 4511510, 8571869, 17143738, 42859345, 85718690]

約数ペア:

[(1, 85718690), (2, 42859345), (5, 17143738), (10, 8571869), (19, 4511510), (38, 2255755), (95, 902302), (109, 786410), (190, 451151), (218, 393205), (545, 157282), (1090, 78641), (2071, 41390), (4139, 20710), (4142, 20695), (8278, 10355)]