81286680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1609}}^1$

素因数の和:2044

約数の個数: 64

約数和(自身を含む): 244591200

約数和(自身を除く): 163304520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 421, 842, 1263, 1609, 1684, 2105, 2526, 3218, 3368, 4210, 4827, 5052, 6315, 6436, 8045, 8420, 9654, 10104, 12630, 12872, 16090, 16840, 19308, 24135, 25260, 32180, 38616, 48270, 50520, 64360, 96540, 193080, 677389, 1354778, 2032167, 2709556, 3386945, 4064334, 5419112, 6773890, 8128668, 10160835, 13547780, 16257336, 20321670, 27095560, 40643340, 81286680]

約数ペア:

[(1, 81286680), (2, 40643340), (3, 27095560), (4, 20321670), (5, 16257336), (6, 13547780), (8, 10160835), (10, 8128668), (12, 6773890), (15, 5419112), (20, 4064334), (24, 3386945), (30, 2709556), (40, 2032167), (60, 1354778), (120, 677389), (421, 193080), (842, 96540), (1263, 64360), (1609, 50520), (1684, 48270), (2105, 38616), (2526, 32180), (3218, 25260), (3368, 24135), (4210, 19308), (4827, 16840), (5052, 16090), (6315, 12872), (6436, 12630), (8045, 10104), (8420, 9654)]