65593720

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2027}}^1$

素因数の和:2847

約数の個数: 32

約数和(自身を含む): 147841200

約数和(自身を除く): 82247480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 2027, 3236, 4045, 4054, 6472, 8090, 8108, 10135, 16180, 16216, 20270, 32360, 40540, 81080, 1639843, 3279686, 6559372, 8199215, 13118744, 16398430, 32796860, 65593720]

約数ペア:

[(1, 65593720), (2, 32796860), (4, 16398430), (5, 13118744), (8, 8199215), (10, 6559372), (20, 3279686), (40, 1639843), (809, 81080), (1618, 40540), (2027, 32360), (3236, 20270), (4045, 16216), (4054, 16180), (6472, 10135), (8090, 8108)]