20658190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1483}}^1$

素因数の和:1696

約数の個数: 32

約数和(自身を含む): 42739200

約数和(自身を除く): 22081010

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 995, 1393, 1483, 1990, 2786, 2966, 6965, 7415, 10381, 13930, 14830, 20762, 51905, 103810, 295117, 590234, 1475585, 2065819, 2951170, 4131638, 10329095, 20658190]

約数ペア:

[(1, 20658190), (2, 10329095), (5, 4131638), (7, 2951170), (10, 2065819), (14, 1475585), (35, 590234), (70, 295117), (199, 103810), (398, 51905), (995, 20762), (1393, 14830), (1483, 13930), (1990, 10381), (2786, 7415), (2966, 6965)]