640102980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{1499}}^1$

素因数の和:2169

約数の個数: 96

約数和(自身を含む): 1959552000

約数和(自身を除く): 1319449020

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 647, 660, 1294, 1499, 1941, 2588, 2998, 3235, 3882, 4497, 5996, 6470, 7117, 7495, 7764, 8994, 9705, 12940, 14234, 14990, 16489, 17988, 19410, 21351, 22485, 28468, 29980, 32978, 35585, 38820, 42702, 44970, 49467, 65956, 71170, 82445, 85404, 89940, 98934, 106755, 142340, 164890, 197868, 213510, 247335, 329780, 427020, 494670, 969853, 989340, 1939706, 2909559, 3879412, 4849265, 5819118, 9698530, 10668383, 11638236, 14547795, 19397060, 21336766, 29095590, 32005149, 42673532, 53341915, 58191180, 64010298, 106683830, 128020596, 160025745, 213367660, 320051490, 640102980]

約数ペア:

[(1, 640102980), (2, 320051490), (3, 213367660), (4, 160025745), (5, 128020596), (6, 106683830), (10, 64010298), (11, 58191180), (12, 53341915), (15, 42673532), (20, 32005149), (22, 29095590), (30, 21336766), (33, 19397060), (44, 14547795), (55, 11638236), (60, 10668383), (66, 9698530), (110, 5819118), (132, 4849265), (165, 3879412), (220, 2909559), (330, 1939706), (647, 989340), (660, 969853), (1294, 494670), (1499, 427020), (1941, 329780), (2588, 247335), (2998, 213510), (3235, 197868), (3882, 164890), (4497, 142340), (5996, 106755), (6470, 98934), (7117, 89940), (7495, 85404), (7764, 82445), (8994, 71170), (9705, 65956), (12940, 49467), (14234, 44970), (14990, 42702), (16489, 38820), (17988, 35585), (19410, 32978), (21351, 29980), (22485, 28468)]