61388680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1597}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 142813260

約数和(自身を除く): 81424580

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1597, 1922, 3194, 3844, 4805, 6388, 7688, 7985, 9610, 12776, 15970, 19220, 31940, 38440, 49507, 63880, 99014, 198028, 247535, 396056, 495070, 990140, 1534717, 1980280, 3069434, 6138868, 7673585, 12277736, 15347170, 30694340, 61388680]

約数ペア:

[(1, 61388680), (2, 30694340), (4, 15347170), (5, 12277736), (8, 7673585), (10, 6138868), (20, 3069434), (31, 1980280), (40, 1534717), (62, 990140), (124, 495070), (155, 396056), (248, 247535), (310, 198028), (620, 99014), (961, 63880), (1240, 49507), (1597, 38440), (1922, 31940), (3194, 19220), (3844, 15970), (4805, 12776), (6388, 9610), (7688, 7985)]