18844925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 28123200

約数和(自身を除く): 9278275

約数列:

[1, 5, 11, 17, 25, 29, 55, 85, 139, 145, 187, 275, 319, 425, 493, 695, 725, 935, 1529, 1595, 2363, 2465, 3475, 4031, 4675, 5423, 7645, 7975, 11815, 12325, 20155, 25993, 27115, 38225, 44341, 59075, 68527, 100775, 129965, 135575, 221705, 342635, 649825, 753797, 1108525, 1713175, 3768985, 18844925]

約数ペア:

[(1, 18844925), (5, 3768985), (11, 1713175), (17, 1108525), (25, 753797), (29, 649825), (55, 342635), (85, 221705), (139, 135575), (145, 129965), (187, 100775), (275, 68527), (319, 59075), (425, 44341), (493, 38225), (695, 27115), (725, 25993), (935, 20155), (1529, 12325), (1595, 11815), (2363, 7975), (2465, 7645), (3475, 5423), (4031, 4675)]