20199095440

素因数分解:

$2^4\times 5^1\times {\mathrm{14437}}^1\times {\mathrm{17489}}^1$

素因数の和:31939

約数の個数: 40

約数和(自身を含む): 46968835320

約数和(自身を除く): 26769739880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 14437, 17489, 28874, 34978, 57748, 69956, 72185, 87445, 115496, 139912, 144370, 174890, 230992, 279824, 288740, 349780, 577480, 699560, 1154960, 1399120, 252488693, 504977386, 1009954772, 1262443465, 2019909544, 2524886930, 4039819088, 5049773860, 10099547720, 20199095440]

約数ペア:

[(1, 20199095440), (2, 10099547720), (4, 5049773860), (5, 4039819088), (8, 2524886930), (10, 2019909544), (16, 1262443465), (20, 1009954772), (40, 504977386), (80, 252488693), (14437, 1399120), (17489, 1154960), (28874, 699560), (34978, 577480), (57748, 349780), (69956, 288740), (72185, 279824), (87445, 230992), (115496, 174890), (139912, 144370)]