80439120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{111721}}^1$

素因数の和:111740

約数の個数: 60

約数和(自身を含む): 270143796

約数和(自身を除く): 189704676

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, 360, 720, 111721, 223442, 335163, 446884, 558605, 670326, 893768, 1005489, 1117210, 1340652, 1675815, 1787536, 2010978, 2234420, 2681304, 3351630, 4021956, 4468840, 5027445, 5362608, 6703260, 8043912, 8937680, 10054890, 13406520, 16087824, 20109780, 26813040, 40219560, 80439120]

約数ペア:

[(1, 80439120), (2, 40219560), (3, 26813040), (4, 20109780), (5, 16087824), (6, 13406520), (8, 10054890), (9, 8937680), (10, 8043912), (12, 6703260), (15, 5362608), (16, 5027445), (18, 4468840), (20, 4021956), (24, 3351630), (30, 2681304), (36, 2234420), (40, 2010978), (45, 1787536), (48, 1675815), (60, 1340652), (72, 1117210), (80, 1005489), (90, 893768), (120, 670326), (144, 558605), (180, 446884), (240, 335163), (360, 223442), (720, 111721)]