42739220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52121}}^1$

素因数の和:52171

約数の個数: 24

約数和(自身を含む): 91943208

約数和(自身を除く): 49203988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 52121, 104242, 208484, 260605, 521210, 1042420, 2136961, 4273922, 8547844, 10684805, 21369610, 42739220]

約数ペア:

[(1, 42739220), (2, 21369610), (4, 10684805), (5, 8547844), (10, 4273922), (20, 2136961), (41, 1042420), (82, 521210), (164, 260605), (205, 208484), (410, 104242), (820, 52121)]