20152730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:279

約数の個数: 64

約数和(自身を含む): 42336000

約数和(自身を除く): 22183270

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 41, 65, 82, 95, 130, 190, 199, 205, 247, 398, 410, 494, 533, 779, 995, 1066, 1235, 1558, 1990, 2470, 2587, 2665, 3781, 3895, 5174, 5330, 7562, 7790, 8159, 10127, 12935, 16318, 18905, 20254, 25870, 37810, 40795, 49153, 50635, 81590, 98306, 101270, 106067, 155021, 212134, 245765, 310042, 491530, 530335, 775105, 1060670, 1550210, 2015273, 4030546, 10076365, 20152730]

約数ペア:

[(1, 20152730), (2, 10076365), (5, 4030546), (10, 2015273), (13, 1550210), (19, 1060670), (26, 775105), (38, 530335), (41, 491530), (65, 310042), (82, 245765), (95, 212134), (130, 155021), (190, 106067), (199, 101270), (205, 98306), (247, 81590), (398, 50635), (410, 49153), (494, 40795), (533, 37810), (779, 25870), (995, 20254), (1066, 18905), (1235, 16318), (1558, 12935), (1990, 10127), (2470, 8159), (2587, 7790), (2665, 7562), (3781, 5330), (3895, 5174)]