81116140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{7937}}^1$

素因数の和:8026

約数の個数: 48

約数和(自身を含む): 197370432

約数和(自身を除く): 116254292

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2044, 2555, 5110, 7937, 10220, 15874, 31748, 39685, 55559, 79370, 111118, 158740, 222236, 277795, 555590, 579401, 1111180, 1158802, 2317604, 2897005, 4055807, 5794010, 8111614, 11588020, 16223228, 20279035, 40558070, 81116140]

約数ペア:

[(1, 81116140), (2, 40558070), (4, 20279035), (5, 16223228), (7, 11588020), (10, 8111614), (14, 5794010), (20, 4055807), (28, 2897005), (35, 2317604), (70, 1158802), (73, 1111180), (140, 579401), (146, 555590), (292, 277795), (365, 222236), (511, 158740), (730, 111118), (1022, 79370), (1460, 55559), (2044, 39685), (2555, 31748), (5110, 15874), (7937, 10220)]