129717320

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{6659}}^1$

素因数の和:7157

約数の個数: 32

約数和(自身を含む): 292507200

約数和(自身を除く): 162789880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3896, 4870, 6659, 9740, 13318, 19480, 26636, 33295, 53272, 66590, 133180, 266360, 3242933, 6485866, 12971732, 16214665, 25943464, 32429330, 64858660, 129717320]

約数ペア:

[(1, 129717320), (2, 64858660), (4, 32429330), (5, 25943464), (8, 16214665), (10, 12971732), (20, 6485866), (40, 3242933), (487, 266360), (974, 133180), (1948, 66590), (2435, 53272), (3896, 33295), (4870, 26636), (6659, 19480), (9740, 13318)]