4147840

素因数分解:

$2^7\times 5^1\times {\mathrm{6481}}^1$

素因数の和:6500

約数の個数: 32

約数和(自身を含む): 9917460

約数和(自身を除く): 5769620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 6481, 12962, 25924, 32405, 51848, 64810, 103696, 129620, 207392, 259240, 414784, 518480, 829568, 1036960, 2073920, 4147840]

約数ペア:

[(1, 4147840), (2, 2073920), (4, 1036960), (5, 829568), (8, 518480), (10, 414784), (16, 259240), (20, 207392), (32, 129620), (40, 103696), (64, 64810), (80, 51848), (128, 32405), (160, 25924), (320, 12962), (640, 6481)]