31490270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1289}}^1$

素因数の和:1652

約数の個数: 32

約数和(自身を含む): 65016000

約数和(自身を除く): 33525730

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 349, 698, 1289, 1745, 2443, 2578, 3490, 4886, 6445, 9023, 12215, 12890, 18046, 24430, 45115, 90230, 449861, 899722, 2249305, 3149027, 4498610, 6298054, 15745135, 31490270]

約数ペア:

[(1, 31490270), (2, 15745135), (5, 6298054), (7, 4498610), (10, 3149027), (14, 2249305), (35, 899722), (70, 449861), (349, 90230), (698, 45115), (1289, 24430), (1745, 18046), (2443, 12890), (2578, 12215), (3490, 9023), (4886, 6445)]