40666000

素因数分解:

$2^4\times 5^3\times {\mathrm{20333}}^1$

素因数の和:20356

約数の個数: 40

約数和(自身を含む): 98335224

約数和(自身を除く): 57669224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 20333, 40666, 81332, 101665, 162664, 203330, 325328, 406660, 508325, 813320, 1016650, 1626640, 2033300, 2541625, 4066600, 5083250, 8133200, 10166500, 20333000, 40666000]

約数ペア:

[(1, 40666000), (2, 20333000), (4, 10166500), (5, 8133200), (8, 5083250), (10, 4066600), (16, 2541625), (20, 2033300), (25, 1626640), (40, 1016650), (50, 813320), (80, 508325), (100, 406660), (125, 325328), (200, 203330), (250, 162664), (400, 101665), (500, 81332), (1000, 40666), (2000, 20333)]