20280846180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{6898247}}^1$

素因数の和:6898273

約数の個数: 72

約数和(自身を含む): 66057622848

約数和(自身を除く): 45776776668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 6898247, 13796494, 20694741, 27592988, 34491235, 41389482, 48287729, 68982470, 82778964, 96575458, 103473705, 137964940, 144863187, 193150916, 206947410, 241438645, 289726374, 338014103, 413894820, 482877290, 579452748, 676028206, 724315935, 965754580, 1014042309, 1352056412, 1448631870, 1690070515, 2028084618, 2897263740, 3380141030, 4056169236, 5070211545, 6760282060, 10140423090, 20280846180]

約数ペア:

[(1, 20280846180), (2, 10140423090), (3, 6760282060), (4, 5070211545), (5, 4056169236), (6, 3380141030), (7, 2897263740), (10, 2028084618), (12, 1690070515), (14, 1448631870), (15, 1352056412), (20, 1014042309), (21, 965754580), (28, 724315935), (30, 676028206), (35, 579452748), (42, 482877290), (49, 413894820), (60, 338014103), (70, 289726374), (84, 241438645), (98, 206947410), (105, 193150916), (140, 144863187), (147, 137964940), (196, 103473705), (210, 96575458), (245, 82778964), (294, 68982470), (420, 48287729), (490, 41389482), (588, 34491235), (735, 27592988), (980, 20694741), (1470, 13796494), (2940, 6898247)]