65138720

素因数分解:

$2^5\times 5^1\times {\mathrm{443}}^1\times {\mathrm{919}}^1$

素因数の和:1377

約数の個数: 48

約数和(自身を含む): 154405440

約数和(自身を除く): 89266720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 443, 886, 919, 1772, 1838, 2215, 3544, 3676, 4430, 4595, 7088, 7352, 8860, 9190, 14176, 14704, 17720, 18380, 29408, 35440, 36760, 70880, 73520, 147040, 407117, 814234, 1628468, 2035585, 3256936, 4071170, 6513872, 8142340, 13027744, 16284680, 32569360, 65138720]

約数ペア:

[(1, 65138720), (2, 32569360), (4, 16284680), (5, 13027744), (8, 8142340), (10, 6513872), (16, 4071170), (20, 3256936), (32, 2035585), (40, 1628468), (80, 814234), (160, 407117), (443, 147040), (886, 73520), (919, 70880), (1772, 36760), (1838, 35440), (2215, 29408), (3544, 18380), (3676, 17720), (4430, 14704), (4595, 14176), (7088, 9190), (7352, 8860)]