291225740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{857}}^1\times {\mathrm{1307}}^1$

素因数の和:2186

約数の個数: 48

約数和(自身を含む): 659891232

約数和(自身を除く): 368665492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 857, 1307, 1714, 2614, 3428, 4285, 5228, 6535, 8570, 11141, 13070, 16991, 17140, 22282, 26140, 33982, 44564, 55705, 67964, 84955, 111410, 169910, 222820, 339820, 1120099, 2240198, 4480396, 5600495, 11200990, 14561287, 22401980, 29122574, 58245148, 72806435, 145612870, 291225740]

約数ペア:

[(1, 291225740), (2, 145612870), (4, 72806435), (5, 58245148), (10, 29122574), (13, 22401980), (20, 14561287), (26, 11200990), (52, 5600495), (65, 4480396), (130, 2240198), (260, 1120099), (857, 339820), (1307, 222820), (1714, 169910), (2614, 111410), (3428, 84955), (4285, 67964), (5228, 55705), (6535, 44564), (8570, 33982), (11141, 26140), (13070, 22282), (16991, 17140)]