766705420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{55639}}^1$

素因数の和:55714

約数の個数: 48

約数和(自身を含む): 1766681280

約数和(自身を除く): 999975860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3445, 6890, 13780, 55639, 111278, 222556, 278195, 556390, 723307, 1112780, 1446614, 2893228, 2948867, 3616535, 5897734, 7233070, 11795468, 14466140, 14744335, 29488670, 38335271, 58977340, 76670542, 153341084, 191676355, 383352710, 766705420]

約数ペア:

[(1, 766705420), (2, 383352710), (4, 191676355), (5, 153341084), (10, 76670542), (13, 58977340), (20, 38335271), (26, 29488670), (52, 14744335), (53, 14466140), (65, 11795468), (106, 7233070), (130, 5897734), (212, 3616535), (260, 2948867), (265, 2893228), (530, 1446614), (689, 1112780), (1060, 723307), (1378, 556390), (2756, 278195), (3445, 222556), (6890, 111278), (13780, 55639)]