64741280

素因数分解:

$2^5\times 5^1\times {\mathrm{293}}^1\times {\mathrm{1381}}^1$

素因数の和:1689

約数の個数: 48

約数和(自身を含む): 153584424

約数和(自身を除く): 88843144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 293, 586, 1172, 1381, 1465, 2344, 2762, 2930, 4688, 5524, 5860, 6905, 9376, 11048, 11720, 13810, 22096, 23440, 27620, 44192, 46880, 55240, 110480, 220960, 404633, 809266, 1618532, 2023165, 3237064, 4046330, 6474128, 8092660, 12948256, 16185320, 32370640, 64741280]

約数ペア:

[(1, 64741280), (2, 32370640), (4, 16185320), (5, 12948256), (8, 8092660), (10, 6474128), (16, 4046330), (20, 3237064), (32, 2023165), (40, 1618532), (80, 809266), (160, 404633), (293, 220960), (586, 110480), (1172, 55240), (1381, 46880), (1465, 44192), (2344, 27620), (2762, 23440), (2930, 22096), (4688, 13810), (5524, 11720), (5860, 11048), (6905, 9376)]