28667980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{419}}^1$

素因数の和:750

約数の個数: 48

約数和(自身を含む): 66044160

約数和(自身を除く): 37376180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 311, 419, 622, 838, 1244, 1555, 1676, 2095, 3110, 3421, 4190, 4609, 6220, 6842, 8380, 9218, 13684, 17105, 18436, 23045, 34210, 46090, 68420, 92180, 130309, 260618, 521236, 651545, 1303090, 1433399, 2606180, 2866798, 5733596, 7166995, 14333990, 28667980]

約数ペア:

[(1, 28667980), (2, 14333990), (4, 7166995), (5, 5733596), (10, 2866798), (11, 2606180), (20, 1433399), (22, 1303090), (44, 651545), (55, 521236), (110, 260618), (220, 130309), (311, 92180), (419, 68420), (622, 46090), (838, 34210), (1244, 23045), (1555, 18436), (1676, 17105), (2095, 13684), (3110, 9218), (3421, 8380), (4190, 6842), (4609, 6220)]