81965760

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{85381}}^1$

素因数の和:85401

約数の個数: 56

約数和(自身を含む): 260244336

約数和(自身を除く): 178278576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 85381, 170762, 256143, 341524, 426905, 512286, 683048, 853810, 1024572, 1280715, 1366096, 1707620, 2049144, 2561430, 2732192, 3415240, 4098288, 5122860, 5464384, 6830480, 8196576, 10245720, 13660960, 16393152, 20491440, 27321920, 40982880, 81965760]

約数ペア:

[(1, 81965760), (2, 40982880), (3, 27321920), (4, 20491440), (5, 16393152), (6, 13660960), (8, 10245720), (10, 8196576), (12, 6830480), (15, 5464384), (16, 5122860), (20, 4098288), (24, 3415240), (30, 2732192), (32, 2561430), (40, 2049144), (48, 1707620), (60, 1366096), (64, 1280715), (80, 1024572), (96, 853810), (120, 683048), (160, 512286), (192, 426905), (240, 341524), (320, 256143), (480, 170762), (960, 85381)]