20663040

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5381}}^1$

素因数の和:5405

約数の個数: 72

約数和(自身を含む): 66004848

約数和(自身を除く): 45341808

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, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5381, 10762, 16143, 21524, 26905, 32286, 43048, 53810, 64572, 80715, 86096, 107620, 129144, 161430, 172192, 215240, 258288, 322860, 344384, 430480, 516576, 645720, 688768, 860960, 1033152, 1291440, 1377536, 1721920, 2066304, 2582880, 3443840, 4132608, 5165760, 6887680, 10331520, 20663040]

約数ペア:

[(1, 20663040), (2, 10331520), (3, 6887680), (4, 5165760), (5, 4132608), (6, 3443840), (8, 2582880), (10, 2066304), (12, 1721920), (15, 1377536), (16, 1291440), (20, 1033152), (24, 860960), (30, 688768), (32, 645720), (40, 516576), (48, 430480), (60, 344384), (64, 322860), (80, 258288), (96, 215240), (120, 172192), (128, 161430), (160, 129144), (192, 107620), (240, 86096), (256, 80715), (320, 64572), (384, 53810), (480, 43048), (640, 32286), (768, 26905), (960, 21524), (1280, 16143), (1920, 10762), (3840, 5381)]