778820980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2089}}^1\times {\mathrm{2663}}^1$

素因数の和:4768

約数の個数: 48

約数和(自身を含む): 1870767360

約数和(自身を除く): 1091946380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2089, 2663, 4178, 5326, 8356, 10445, 10652, 13315, 14623, 18641, 20890, 26630, 29246, 37282, 41780, 53260, 58492, 73115, 74564, 93205, 146230, 186410, 292460, 372820, 5563007, 11126014, 22252028, 27815035, 38941049, 55630070, 77882098, 111260140, 155764196, 194705245, 389410490, 778820980]

約数ペア:

[(1, 778820980), (2, 389410490), (4, 194705245), (5, 155764196), (7, 111260140), (10, 77882098), (14, 55630070), (20, 38941049), (28, 27815035), (35, 22252028), (70, 11126014), (140, 5563007), (2089, 372820), (2663, 292460), (4178, 186410), (5326, 146230), (8356, 93205), (10445, 74564), (10652, 73115), (13315, 58492), (14623, 53260), (18641, 41780), (20890, 37282), (26630, 29246)]