193358920

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{9497}}^1$

素因数の和:10017

約数の個数: 32

約数和(自身を含む): 435958200

約数和(自身を除く): 242599280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 2036, 2545, 4072, 5090, 9497, 10180, 18994, 20360, 37988, 47485, 75976, 94970, 189940, 379880, 4833973, 9667946, 19335892, 24169865, 38671784, 48339730, 96679460, 193358920]

約数ペア:

[(1, 193358920), (2, 96679460), (4, 48339730), (5, 38671784), (8, 24169865), (10, 19335892), (20, 9667946), (40, 4833973), (509, 379880), (1018, 189940), (2036, 94970), (2545, 75976), (4072, 47485), (5090, 37988), (9497, 20360), (10180, 18994)]