321508740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{765497}}^1$

素因数の和:765516

約数の個数: 48

約数和(自身を含む): 1028829312

約数和(自身を除く): 707320572

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 765497, 1530994, 2296491, 3061988, 3827485, 4592982, 5358479, 7654970, 9185964, 10716958, 11482455, 15309940, 16075437, 21433916, 22964910, 26792395, 32150874, 45929820, 53584790, 64301748, 80377185, 107169580, 160754370, 321508740]

約数ペア:

[(1, 321508740), (2, 160754370), (3, 107169580), (4, 80377185), (5, 64301748), (6, 53584790), (7, 45929820), (10, 32150874), (12, 26792395), (14, 22964910), (15, 21433916), (20, 16075437), (21, 15309940), (28, 11482455), (30, 10716958), (35, 9185964), (42, 7654970), (60, 5358479), (70, 4592982), (84, 3827485), (105, 3061988), (140, 2296491), (210, 1530994), (420, 765497)]