2018992180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{112291}}^1$

素因数の和:112360

約数の個数: 48

約数和(自身を含む): 4527613440

約数和(自身を除く): 2508621260

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1798, 3596, 4495, 8990, 17980, 112291, 224582, 449164, 561455, 1122910, 2245820, 3256439, 3481021, 6512878, 6962042, 13025756, 13924084, 16282195, 17405105, 32564390, 34810210, 65128780, 69620420, 100949609, 201899218, 403798436, 504748045, 1009496090, 2018992180]

約数ペア:

[(1, 2018992180), (2, 1009496090), (4, 504748045), (5, 403798436), (10, 201899218), (20, 100949609), (29, 69620420), (31, 65128780), (58, 34810210), (62, 32564390), (116, 17405105), (124, 16282195), (145, 13924084), (155, 13025756), (290, 6962042), (310, 6512878), (580, 3481021), (620, 3256439), (899, 2245820), (1798, 1122910), (3596, 561455), (4495, 449164), (8990, 224582), (17980, 112291)]