61871720

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{8941}}^1$

素因数の和:9125

約数の個数: 32

約数和(自身を含む): 140031720

約数和(自身を除く): 78160000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 8941, 17882, 35764, 44705, 71528, 89410, 178820, 357640, 1546793, 3093586, 6187172, 7733965, 12374344, 15467930, 30935860, 61871720]

約数ペア:

[(1, 61871720), (2, 30935860), (4, 15467930), (5, 12374344), (8, 7733965), (10, 6187172), (20, 3093586), (40, 1546793), (173, 357640), (346, 178820), (692, 89410), (865, 71528), (1384, 44705), (1730, 35764), (3460, 17882), (6920, 8941)]