19756550

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2113}}^1$

素因数の和:2153

約数の個数: 48

約数和(自身を含む): 42466032

約数和(自身を除く): 22709482

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 170, 187, 275, 374, 425, 550, 850, 935, 1870, 2113, 4226, 4675, 9350, 10565, 21130, 23243, 35921, 46486, 52825, 71842, 105650, 116215, 179605, 232430, 359210, 395131, 581075, 790262, 898025, 1162150, 1796050, 1975655, 3951310, 9878275, 19756550]

約数ペア:

[(1, 19756550), (2, 9878275), (5, 3951310), (10, 1975655), (11, 1796050), (17, 1162150), (22, 898025), (25, 790262), (34, 581075), (50, 395131), (55, 359210), (85, 232430), (110, 179605), (170, 116215), (187, 105650), (275, 71842), (374, 52825), (425, 46486), (550, 35921), (850, 23243), (935, 21130), (1870, 10565), (2113, 9350), (4226, 4675)]