8739320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{5081}}^1$

素因数の和:5135

約数の個数: 32

約数和(自身を含む): 20124720

約数和(自身を除く): 11385400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 5081, 10162, 20324, 25405, 40648, 50810, 101620, 203240, 218483, 436966, 873932, 1092415, 1747864, 2184830, 4369660, 8739320]

約数ペア:

[(1, 8739320), (2, 4369660), (4, 2184830), (5, 1747864), (8, 1092415), (10, 873932), (20, 436966), (40, 218483), (43, 203240), (86, 101620), (172, 50810), (215, 40648), (344, 25405), (430, 20324), (860, 10162), (1720, 5081)]