4217780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:704

約数の個数: 48

約数和(自身を含む): 10354176

約数和(自身を除く): 6136396

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 641, 658, 940, 1282, 1316, 1645, 2564, 3205, 3290, 4487, 6410, 6580, 8974, 12820, 17948, 22435, 30127, 44870, 60254, 89740, 120508, 150635, 210889, 301270, 421778, 602540, 843556, 1054445, 2108890, 4217780]

約数ペア:

[(1, 4217780), (2, 2108890), (4, 1054445), (5, 843556), (7, 602540), (10, 421778), (14, 301270), (20, 210889), (28, 150635), (35, 120508), (47, 89740), (70, 60254), (94, 44870), (140, 30127), (188, 22435), (235, 17948), (329, 12820), (470, 8974), (641, 6580), (658, 6410), (940, 4487), (1282, 3290), (1316, 3205), (1645, 2564)]