80489780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{8581}}^1$

素因数の和:8664

約数の個数: 48

約数和(自身を含む): 196081536

約数和(自身を除く): 115591756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2345, 4690, 8581, 9380, 17162, 34324, 42905, 60067, 85810, 120134, 171620, 240268, 300335, 574927, 600670, 1149854, 1201340, 2299708, 2874635, 4024489, 5749270, 8048978, 11498540, 16097956, 20122445, 40244890, 80489780]

約数ペア:

[(1, 80489780), (2, 40244890), (4, 20122445), (5, 16097956), (7, 11498540), (10, 8048978), (14, 5749270), (20, 4024489), (28, 2874635), (35, 2299708), (67, 1201340), (70, 1149854), (134, 600670), (140, 574927), (268, 300335), (335, 240268), (469, 171620), (670, 120134), (938, 85810), (1340, 60067), (1876, 42905), (2345, 34324), (4690, 17162), (8581, 9380)]