209841380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{18973}}^1$

素因数の和:19068

約数の個数: 48

約数和(自身を含む): 510021120

約数和(自身を除く): 300179740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 790, 1106, 1580, 2212, 2765, 5530, 11060, 18973, 37946, 75892, 94865, 132811, 189730, 265622, 379460, 531244, 664055, 1328110, 1498867, 2656220, 2997734, 5995468, 7494335, 10492069, 14988670, 20984138, 29977340, 41968276, 52460345, 104920690, 209841380]

約数ペア:

[(1, 209841380), (2, 104920690), (4, 52460345), (5, 41968276), (7, 29977340), (10, 20984138), (14, 14988670), (20, 10492069), (28, 7494335), (35, 5995468), (70, 2997734), (79, 2656220), (140, 1498867), (158, 1328110), (316, 664055), (395, 531244), (553, 379460), (790, 265622), (1106, 189730), (1580, 132811), (2212, 94865), (2765, 75892), (5530, 37946), (11060, 18973)]