258963770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{4943}}^1$

素因数の和:5007

約数の個数: 48

約数和(自身を含む): 521137152

約数和(自身を除く): 262173382

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 169, 310, 338, 403, 806, 845, 1690, 2015, 4030, 4943, 5239, 9886, 10478, 24715, 26195, 49430, 52390, 64259, 128518, 153233, 306466, 321295, 642590, 766165, 835367, 1532330, 1670734, 1992029, 3984058, 4176835, 8353670, 9960145, 19920290, 25896377, 51792754, 129481885, 258963770]

約数ペア:

[(1, 258963770), (2, 129481885), (5, 51792754), (10, 25896377), (13, 19920290), (26, 9960145), (31, 8353670), (62, 4176835), (65, 3984058), (130, 1992029), (155, 1670734), (169, 1532330), (310, 835367), (338, 766165), (403, 642590), (806, 321295), (845, 306466), (1690, 153233), (2015, 128518), (4030, 64259), (4943, 52390), (5239, 49430), (9886, 26195), (10478, 24715)]