19879730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4133}}^1$

素因数の和:4190

約数の個数: 32

約数和(自身を含む): 39587184

約数和(自身を除く): 19707454

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4133, 4810, 8266, 20665, 41330, 53729, 107458, 152921, 268645, 305842, 537290, 764605, 1529210, 1987973, 3975946, 9939865, 19879730]

約数ペア:

[(1, 19879730), (2, 9939865), (5, 3975946), (10, 1987973), (13, 1529210), (26, 764605), (37, 537290), (65, 305842), (74, 268645), (130, 152921), (185, 107458), (370, 53729), (481, 41330), (962, 20665), (2405, 8266), (4133, 4810)]