8481620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1289}}^1$

素因数の和:1352

約数の個数: 48

約数和(自身を含む): 20805120

約数和(自身を除く): 12323500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1289, 1316, 1645, 2578, 3290, 5156, 6445, 6580, 9023, 12890, 18046, 25780, 36092, 45115, 60583, 90230, 121166, 180460, 242332, 302915, 424081, 605830, 848162, 1211660, 1696324, 2120405, 4240810, 8481620]

約数ペア:

[(1, 8481620), (2, 4240810), (4, 2120405), (5, 1696324), (7, 1211660), (10, 848162), (14, 605830), (20, 424081), (28, 302915), (35, 242332), (47, 180460), (70, 121166), (94, 90230), (140, 60583), (188, 45115), (235, 36092), (329, 25780), (470, 18046), (658, 12890), (940, 9023), (1289, 6580), (1316, 6445), (1645, 5156), (2578, 3290)]