313831760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{503}}^1\times {\mathrm{709}}^1$

素因数の和:1236

約数の個数: 80

約数和(自身を含む): 798698880

約数和(自身を除く): 484867120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 503, 709, 880, 1006, 1418, 2012, 2515, 2836, 3545, 4024, 5030, 5533, 5672, 7090, 7799, 8048, 10060, 11066, 11344, 14180, 15598, 20120, 22132, 27665, 28360, 31196, 38995, 40240, 44264, 55330, 56720, 62392, 77990, 88528, 110660, 124784, 155980, 221320, 311960, 356627, 442640, 623920, 713254, 1426508, 1783135, 2853016, 3566270, 3922897, 5706032, 7132540, 7845794, 14265080, 15691588, 19614485, 28530160, 31383176, 39228970, 62766352, 78457940, 156915880, 313831760]

約数ペア:

[(1, 313831760), (2, 156915880), (4, 78457940), (5, 62766352), (8, 39228970), (10, 31383176), (11, 28530160), (16, 19614485), (20, 15691588), (22, 14265080), (40, 7845794), (44, 7132540), (55, 5706032), (80, 3922897), (88, 3566270), (110, 2853016), (176, 1783135), (220, 1426508), (440, 713254), (503, 623920), (709, 442640), (880, 356627), (1006, 311960), (1418, 221320), (2012, 155980), (2515, 124784), (2836, 110660), (3545, 88528), (4024, 77990), (5030, 62392), (5533, 56720), (5672, 55330), (7090, 44264), (7799, 40240), (8048, 38995), (10060, 31196), (11066, 28360), (11344, 27665), (14180, 22132), (15598, 20120)]