66913720

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{5449}}^1$

素因数の和:5767

約数の個数: 32

約数和(自身を含む): 151074000

約数和(自身を除く): 84160280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 5449, 6140, 10898, 12280, 21796, 27245, 43592, 54490, 108980, 217960, 1672843, 3345686, 6691372, 8364215, 13382744, 16728430, 33456860, 66913720]

約数ペア:

[(1, 66913720), (2, 33456860), (4, 16728430), (5, 13382744), (8, 8364215), (10, 6691372), (20, 3345686), (40, 1672843), (307, 217960), (614, 108980), (1228, 54490), (1535, 43592), (2456, 27245), (3070, 21796), (5449, 12280), (6140, 10898)]