171989820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{5279}}^1$

素因数の和:5475

約数の個数: 72

約数和(自身を含む): 524684160

約数和(自身を除く): 352694340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 724, 905, 1086, 1629, 1810, 2172, 2715, 3258, 3620, 5279, 5430, 6516, 8145, 10558, 10860, 15837, 16290, 21116, 26395, 31674, 32580, 47511, 52790, 63348, 79185, 95022, 105580, 158370, 190044, 237555, 316740, 475110, 950220, 955499, 1910998, 2866497, 3821996, 4777495, 5732994, 8599491, 9554990, 11465988, 14332485, 17198982, 19109980, 28664970, 34397964, 42997455, 57329940, 85994910, 171989820]

約数ペア:

[(1, 171989820), (2, 85994910), (3, 57329940), (4, 42997455), (5, 34397964), (6, 28664970), (9, 19109980), (10, 17198982), (12, 14332485), (15, 11465988), (18, 9554990), (20, 8599491), (30, 5732994), (36, 4777495), (45, 3821996), (60, 2866497), (90, 1910998), (180, 955499), (181, 950220), (362, 475110), (543, 316740), (724, 237555), (905, 190044), (1086, 158370), (1629, 105580), (1810, 95022), (2172, 79185), (2715, 63348), (3258, 52790), (3620, 47511), (5279, 32580), (5430, 31674), (6516, 26395), (8145, 21116), (10558, 16290), (10860, 15837)]