78602020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{7691}}^1$

素因数の和:7780

約数の個数: 48

約数和(自身を含む): 191253888

約数和(自身を除く): 112651868

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, 7691, 10220, 15382, 30764, 38455, 53837, 76910, 107674, 153820, 215348, 269185, 538370, 561443, 1076740, 1122886, 2245772, 2807215, 3930101, 5614430, 7860202, 11228860, 15720404, 19650505, 39301010, 78602020]

約数ペア:

[(1, 78602020), (2, 39301010), (4, 19650505), (5, 15720404), (7, 11228860), (10, 7860202), (14, 5614430), (20, 3930101), (28, 2807215), (35, 2245772), (70, 1122886), (73, 1076740), (140, 561443), (146, 538370), (292, 269185), (365, 215348), (511, 153820), (730, 107674), (1022, 76910), (1460, 53837), (2044, 38455), (2555, 30764), (5110, 15382), (7691, 10220)]