9915320

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{509}}^1$

素因数の和:1007

約数の個数: 32

約数和(自身を含む): 22399200

約数和(自身を除く): 12483880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 509, 974, 1018, 1948, 2036, 2435, 2545, 3896, 4072, 4870, 5090, 9740, 10180, 19480, 20360, 247883, 495766, 991532, 1239415, 1983064, 2478830, 4957660, 9915320]

約数ペア:

[(1, 9915320), (2, 4957660), (4, 2478830), (5, 1983064), (8, 1239415), (10, 991532), (20, 495766), (40, 247883), (487, 20360), (509, 19480), (974, 10180), (1018, 9740), (1948, 5090), (2036, 4870), (2435, 4072), (2545, 3896)]