9971840

素因数分解:

$2^7\times 5^1\times {\mathrm{15581}}^1$

素因数の和:15600

約数の個数: 32

約数和(自身を含む): 23840460

約数和(自身を除く): 13868620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 15581, 31162, 62324, 77905, 124648, 155810, 249296, 311620, 498592, 623240, 997184, 1246480, 1994368, 2492960, 4985920, 9971840]

約数ペア:

[(1, 9971840), (2, 4985920), (4, 2492960), (5, 1994368), (8, 1246480), (10, 997184), (16, 623240), (20, 498592), (32, 311620), (40, 249296), (64, 155810), (80, 124648), (128, 77905), (160, 62324), (320, 31162), (640, 15581)]