64940320

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9439}}^1$

素因数の和:9497

約数の個数: 48

約数和(自身を含む): 157006080

約数和(自身を除く): 92065760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 6880, 9439, 18878, 37756, 47195, 75512, 94390, 151024, 188780, 302048, 377560, 405877, 755120, 811754, 1510240, 1623508, 2029385, 3247016, 4058770, 6494032, 8117540, 12988064, 16235080, 32470160, 64940320]

約数ペア:

[(1, 64940320), (2, 32470160), (4, 16235080), (5, 12988064), (8, 8117540), (10, 6494032), (16, 4058770), (20, 3247016), (32, 2029385), (40, 1623508), (43, 1510240), (80, 811754), (86, 755120), (160, 405877), (172, 377560), (215, 302048), (344, 188780), (430, 151024), (688, 94390), (860, 75512), (1376, 47195), (1720, 37756), (3440, 18878), (6880, 9439)]