72454040

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2239}}^1$

素因数の和:3059

約数の個数: 32

約数和(自身を含む): 163296000

約数和(自身を除く): 90841960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 1618, 2239, 3236, 4045, 4478, 6472, 8090, 8956, 11195, 16180, 17912, 22390, 32360, 44780, 89560, 1811351, 3622702, 7245404, 9056755, 14490808, 18113510, 36227020, 72454040]

約数ペア:

[(1, 72454040), (2, 36227020), (4, 18113510), (5, 14490808), (8, 9056755), (10, 7245404), (20, 3622702), (40, 1811351), (809, 89560), (1618, 44780), (2239, 32360), (3236, 22390), (4045, 17912), (4478, 16180), (6472, 11195), (8090, 8956)]