20731440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86381}}^1$

素因数の和:86397

約数の個数: 40

約数和(自身を含む): 64268208

約数和(自身を除く): 43536768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86381, 172762, 259143, 345524, 431905, 518286, 691048, 863810, 1036572, 1295715, 1382096, 1727620, 2073144, 2591430, 3455240, 4146288, 5182860, 6910480, 10365720, 20731440]

約数ペア:

[(1, 20731440), (2, 10365720), (3, 6910480), (4, 5182860), (5, 4146288), (6, 3455240), (8, 2591430), (10, 2073144), (12, 1727620), (15, 1382096), (16, 1295715), (20, 1036572), (24, 863810), (30, 691048), (40, 518286), (48, 431905), (60, 345524), (80, 259143), (120, 172762), (240, 86381)]