66921440

素因数分解:

$2^5\times 5^1\times {\mathrm{418259}}^1$

素因数の和:418274

約数の個数: 24

約数和(自身を含む): 158102280

約数和(自身を除く): 91180840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 418259, 836518, 1673036, 2091295, 3346072, 4182590, 6692144, 8365180, 13384288, 16730360, 33460720, 66921440]

約数ペア:

[(1, 66921440), (2, 33460720), (4, 16730360), (5, 13384288), (8, 8365180), (10, 6692144), (16, 4182590), (20, 3346072), (32, 2091295), (40, 1673036), (80, 836518), (160, 418259)]