289968140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{188291}}^1$

素因数の和:188318

約数の個数: 48

約数和(自身を含む): 759193344

約数和(自身を除く): 469225204

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 188291, 376582, 753164, 941455, 1318037, 1882910, 2071201, 2636074, 3765820, 4142402, 5272148, 6590185, 8284804, 10356005, 13180370, 14498407, 20712010, 26360740, 28996814, 41424020, 57993628, 72492035, 144984070, 289968140]

約数ペア:

[(1, 289968140), (2, 144984070), (4, 72492035), (5, 57993628), (7, 41424020), (10, 28996814), (11, 26360740), (14, 20712010), (20, 14498407), (22, 13180370), (28, 10356005), (35, 8284804), (44, 6590185), (55, 5272148), (70, 4142402), (77, 3765820), (110, 2636074), (140, 2071201), (154, 1882910), (220, 1318037), (308, 941455), (385, 753164), (770, 376582), (1540, 188291)]