123711820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{87121}}^1$

素因数の和:87201

約数の個数: 24

約数和(自身を含む): 263456928

約数和(自身を除く): 139745108

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 87121, 174242, 348484, 435605, 871210, 1742420, 6185591, 12371182, 24742364, 30927955, 61855910, 123711820]

約数ペア:

[(1, 123711820), (2, 61855910), (4, 30927955), (5, 24742364), (10, 12371182), (20, 6185591), (71, 1742420), (142, 871210), (284, 435605), (355, 348484), (710, 174242), (1420, 87121)]