20684280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1777}}^1$

素因数の和:1888

約数の個数: 64

約数和(自身を含む): 62727840

約数和(自身を除く): 42043560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1777, 1940, 2328, 2910, 3554, 3880, 5331, 5820, 7108, 8885, 10662, 11640, 14216, 17770, 21324, 26655, 35540, 42648, 53310, 71080, 106620, 172369, 213240, 344738, 517107, 689476, 861845, 1034214, 1378952, 1723690, 2068428, 2585535, 3447380, 4136856, 5171070, 6894760, 10342140, 20684280]

約数ペア:

[(1, 20684280), (2, 10342140), (3, 6894760), (4, 5171070), (5, 4136856), (6, 3447380), (8, 2585535), (10, 2068428), (12, 1723690), (15, 1378952), (20, 1034214), (24, 861845), (30, 689476), (40, 517107), (60, 344738), (97, 213240), (120, 172369), (194, 106620), (291, 71080), (388, 53310), (485, 42648), (582, 35540), (776, 26655), (970, 21324), (1164, 17770), (1455, 14216), (1777, 11640), (1940, 10662), (2328, 8885), (2910, 7108), (3554, 5820), (3880, 5331)]