81941220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{50581}}^1$

素因数の和:50602

約数の個数: 60

約数和(自身を含む): 257057724

約数和(自身を除く): 175116504

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 50581, 101162, 151743, 202324, 252905, 303486, 455229, 505810, 606972, 758715, 910458, 1011620, 1365687, 1517430, 1820916, 2276145, 2731374, 3034860, 4097061, 4552290, 5462748, 6828435, 8194122, 9104580, 13656870, 16388244, 20485305, 27313740, 40970610, 81941220]

約数ペア:

[(1, 81941220), (2, 40970610), (3, 27313740), (4, 20485305), (5, 16388244), (6, 13656870), (9, 9104580), (10, 8194122), (12, 6828435), (15, 5462748), (18, 4552290), (20, 4097061), (27, 3034860), (30, 2731374), (36, 2276145), (45, 1820916), (54, 1517430), (60, 1365687), (81, 1011620), (90, 910458), (108, 758715), (135, 606972), (162, 505810), (180, 455229), (270, 303486), (324, 252905), (405, 202324), (540, 151743), (810, 101162), (1620, 50581)]