80055520

素因数分解:

$2^5\times 5^1\times {\mathrm{509}}^1\times {\mathrm{983}}^1$

素因数の和:1507

約数の個数: 48

約数和(自身を含む): 189695520

約数和(自身を除く): 109640000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 509, 983, 1018, 1966, 2036, 2545, 3932, 4072, 4915, 5090, 7864, 8144, 9830, 10180, 15728, 16288, 19660, 20360, 31456, 39320, 40720, 78640, 81440, 157280, 500347, 1000694, 2001388, 2501735, 4002776, 5003470, 8005552, 10006940, 16011104, 20013880, 40027760, 80055520]

約数ペア:

[(1, 80055520), (2, 40027760), (4, 20013880), (5, 16011104), (8, 10006940), (10, 8005552), (16, 5003470), (20, 4002776), (32, 2501735), (40, 2001388), (80, 1000694), (160, 500347), (509, 157280), (983, 81440), (1018, 78640), (1966, 40720), (2036, 39320), (2545, 31456), (3932, 20360), (4072, 19660), (4915, 16288), (5090, 15728), (7864, 10180), (8144, 9830)]