20980368

素因数分解:

$2^4\times 3^2\times {\mathrm{53}}^1\times {\mathrm{2749}}^1$

素因数の和:2816

約数の個数: 60

約数和(自身を含む): 59845500

約数和(自身を除く): 38865132

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 53, 72, 106, 144, 159, 212, 318, 424, 477, 636, 848, 954, 1272, 1908, 2544, 2749, 3816, 5498, 7632, 8247, 10996, 16494, 21992, 24741, 32988, 43984, 49482, 65976, 98964, 131952, 145697, 197928, 291394, 395856, 437091, 582788, 874182, 1165576, 1311273, 1748364, 2331152, 2622546, 3496728, 5245092, 6993456, 10490184, 20980368]

約数ペア:

[(1, 20980368), (2, 10490184), (3, 6993456), (4, 5245092), (6, 3496728), (8, 2622546), (9, 2331152), (12, 1748364), (16, 1311273), (18, 1165576), (24, 874182), (36, 582788), (48, 437091), (53, 395856), (72, 291394), (106, 197928), (144, 145697), (159, 131952), (212, 98964), (318, 65976), (424, 49482), (477, 43984), (636, 32988), (848, 24741), (954, 21992), (1272, 16494), (1908, 10996), (2544, 8247), (2749, 7632), (3816, 5498)]