20679530

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1913}}^1$

素因数の和:1990

約数の個数: 32

約数和(自身を含む): 39688704

約数和(自身を除く): 19009174

約数列:

[1, 2, 5, 10, 23, 46, 47, 94, 115, 230, 235, 470, 1081, 1913, 2162, 3826, 5405, 9565, 10810, 19130, 43999, 87998, 89911, 179822, 219995, 439990, 449555, 899110, 2067953, 4135906, 10339765, 20679530]

約数ペア:

[(1, 20679530), (2, 10339765), (5, 4135906), (10, 2067953), (23, 899110), (46, 449555), (47, 439990), (94, 219995), (115, 179822), (230, 89911), (235, 87998), (470, 43999), (1081, 19130), (1913, 10810), (2162, 9565), (3826, 5405)]