20175761520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{111641}}^1$

素因数の和:111911

約数の個数: 120

約数和(自身を含む): 68027489712

約数和(自身を除く): 47851728192

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 251, 360, 502, 720, 753, 1004, 1255, 1506, 2008, 2259, 2510, 3012, 3765, 4016, 4518, 5020, 6024, 7530, 9036, 10040, 11295, 12048, 15060, 18072, 20080, 22590, 30120, 36144, 45180, 60240, 90360, 111641, 180720, 223282, 334923, 446564, 558205, 669846, 893128, 1004769, 1116410, 1339692, 1674615, 1786256, 2009538, 2232820, 2679384, 3349230, 4019076, 4465640, 5023845, 5358768, 6698460, 8038152, 8931280, 10047690, 13396920, 16076304, 20095380, 26793840, 28021891, 40190760, 56043782, 80381520, 84065673, 112087564, 140109455, 168131346, 224175128, 252197019, 280218910, 336262692, 420328365, 448350256, 504394038, 560437820, 672525384, 840656730, 1008788076, 1120875640, 1260985095, 1345050768, 1681313460, 2017576152, 2241751280, 2521970190, 3362626920, 4035152304, 5043940380, 6725253840, 10087880760, 20175761520]

約数ペア:

[(1, 20175761520), (2, 10087880760), (3, 6725253840), (4, 5043940380), (5, 4035152304), (6, 3362626920), (8, 2521970190), (9, 2241751280), (10, 2017576152), (12, 1681313460), (15, 1345050768), (16, 1260985095), (18, 1120875640), (20, 1008788076), (24, 840656730), (30, 672525384), (36, 560437820), (40, 504394038), (45, 448350256), (48, 420328365), (60, 336262692), (72, 280218910), (80, 252197019), (90, 224175128), (120, 168131346), (144, 140109455), (180, 112087564), (240, 84065673), (251, 80381520), (360, 56043782), (502, 40190760), (720, 28021891), (753, 26793840), (1004, 20095380), (1255, 16076304), (1506, 13396920), (2008, 10047690), (2259, 8931280), (2510, 8038152), (3012, 6698460), (3765, 5358768), (4016, 5023845), (4518, 4465640), (5020, 4019076), (6024, 3349230), (7530, 2679384), (9036, 2232820), (10040, 2009538), (11295, 1786256), (12048, 1674615), (15060, 1339692), (18072, 1116410), (20080, 1004769), (22590, 893128), (30120, 669846), (36144, 558205), (45180, 446564), (60240, 334923), (90360, 223282), (111641, 180720)]