28361795

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 44151744

約数和(自身を除く): 15789949

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 121, 181, 185, 259, 385, 407, 605, 847, 905, 1267, 1295, 1991, 2035, 2849, 4235, 4477, 6335, 6697, 9955, 13937, 14245, 21901, 22385, 31339, 33485, 46879, 69685, 73667, 109505, 153307, 156695, 234395, 368335, 515669, 766535, 810337, 2578345, 4051685, 5672359, 28361795]

約数ペア:

[(1, 28361795), (5, 5672359), (7, 4051685), (11, 2578345), (35, 810337), (37, 766535), (55, 515669), (77, 368335), (121, 234395), (181, 156695), (185, 153307), (259, 109505), (385, 73667), (407, 69685), (605, 46879), (847, 33485), (905, 31339), (1267, 22385), (1295, 21901), (1991, 14245), (2035, 13937), (2849, 9955), (4235, 6697), (4477, 6335)]