21953520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{30491}}^1$

素因数の和:30510

約数の個数: 60

約数和(自身を含む): 73729656

約数和(自身を除く): 51776136

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 30491, 60982, 91473, 121964, 152455, 182946, 243928, 274419, 304910, 365892, 457365, 487856, 548838, 609820, 731784, 914730, 1097676, 1219640, 1372095, 1463568, 1829460, 2195352, 2439280, 2744190, 3658920, 4390704, 5488380, 7317840, 10976760, 21953520]

約数ペア:

[(1, 21953520), (2, 10976760), (3, 7317840), (4, 5488380), (5, 4390704), (6, 3658920), (8, 2744190), (9, 2439280), (10, 2195352), (12, 1829460), (15, 1463568), (16, 1372095), (18, 1219640), (20, 1097676), (24, 914730), (30, 731784), (36, 609820), (40, 548838), (45, 487856), (48, 457365), (60, 365892), (72, 304910), (80, 274419), (90, 243928), (120, 182946), (144, 152455), (180, 121964), (240, 91473), (360, 60982), (720, 30491)]