161034320

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19543}}^1$

素因数の和:19659

約数の個数: 40

約数和(自身を含む): 378059136

約数和(自身を除く): 217024816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240, 19543, 39086, 78172, 97715, 156344, 195430, 312688, 390860, 781720, 1563440, 2012929, 4025858, 8051716, 10064645, 16103432, 20129290, 32206864, 40258580, 80517160, 161034320]

約数ペア:

[(1, 161034320), (2, 80517160), (4, 40258580), (5, 32206864), (8, 20129290), (10, 16103432), (16, 10064645), (20, 8051716), (40, 4025858), (80, 2012929), (103, 1563440), (206, 781720), (412, 390860), (515, 312688), (824, 195430), (1030, 156344), (1648, 97715), (2060, 78172), (4120, 39086), (8240, 19543)]