85710640

素因数分解:

$2^4\times 5^1\times {\mathrm{419}}^1\times {\mathrm{2557}}^1$

素因数の和:2989

約数の個数: 40

約数和(自身を含む): 199830960

約数和(自身を除く): 114120320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 419, 838, 1676, 2095, 2557, 3352, 4190, 5114, 6704, 8380, 10228, 12785, 16760, 20456, 25570, 33520, 40912, 51140, 102280, 204560, 1071383, 2142766, 4285532, 5356915, 8571064, 10713830, 17142128, 21427660, 42855320, 85710640]

約数ペア:

[(1, 85710640), (2, 42855320), (4, 21427660), (5, 17142128), (8, 10713830), (10, 8571064), (16, 5356915), (20, 4285532), (40, 2142766), (80, 1071383), (419, 204560), (838, 102280), (1676, 51140), (2095, 40912), (2557, 33520), (3352, 25570), (4190, 20456), (5114, 16760), (6704, 12785), (8380, 10228)]