20571480

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{57143}}^1$

素因数の和:57160

約数の個数: 48

約数和(自身を含む): 66858480

約数和(自身を除く): 46287000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 57143, 114286, 171429, 228572, 285715, 342858, 457144, 514287, 571430, 685716, 857145, 1028574, 1142860, 1371432, 1714290, 2057148, 2285720, 2571435, 3428580, 4114296, 5142870, 6857160, 10285740, 20571480]

約数ペア:

[(1, 20571480), (2, 10285740), (3, 6857160), (4, 5142870), (5, 4114296), (6, 3428580), (8, 2571435), (9, 2285720), (10, 2057148), (12, 1714290), (15, 1371432), (18, 1142860), (20, 1028574), (24, 857145), (30, 685716), (36, 571430), (40, 514287), (45, 457144), (60, 342858), (72, 285715), (90, 228572), (120, 171429), (180, 114286), (360, 57143)]