18787360

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4049}}^1$

素因数の和:4093

約数の個数: 48

約数和(自身を含む): 45927000

約数和(自身を除く): 27139640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4049, 4640, 8098, 16196, 20245, 32392, 40490, 64784, 80980, 117421, 129568, 161960, 234842, 323920, 469684, 587105, 647840, 939368, 1174210, 1878736, 2348420, 3757472, 4696840, 9393680, 18787360]

約数ペア:

[(1, 18787360), (2, 9393680), (4, 4696840), (5, 3757472), (8, 2348420), (10, 1878736), (16, 1174210), (20, 939368), (29, 647840), (32, 587105), (40, 469684), (58, 323920), (80, 234842), (116, 161960), (145, 129568), (160, 117421), (232, 80980), (290, 64784), (464, 40490), (580, 32392), (928, 20245), (1160, 16196), (2320, 8098), (4049, 4640)]