311939720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{2293}}^1$

素因数の和:2502

約数の個数: 64

約数和(自身を含む): 743256000

約数和(自身を除く): 431316280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 179, 190, 358, 380, 716, 760, 895, 1432, 1790, 2293, 3401, 3580, 4586, 6802, 7160, 9172, 11465, 13604, 17005, 18344, 22930, 27208, 34010, 43567, 45860, 68020, 87134, 91720, 136040, 174268, 217835, 348536, 410447, 435670, 820894, 871340, 1641788, 1742680, 2052235, 3283576, 4104470, 7798493, 8208940, 15596986, 16417880, 31193972, 38992465, 62387944, 77984930, 155969860, 311939720]

約数ペア:

[(1, 311939720), (2, 155969860), (4, 77984930), (5, 62387944), (8, 38992465), (10, 31193972), (19, 16417880), (20, 15596986), (38, 8208940), (40, 7798493), (76, 4104470), (95, 3283576), (152, 2052235), (179, 1742680), (190, 1641788), (358, 871340), (380, 820894), (716, 435670), (760, 410447), (895, 348536), (1432, 217835), (1790, 174268), (2293, 136040), (3401, 91720), (3580, 87134), (4586, 68020), (6802, 45860), (7160, 43567), (9172, 34010), (11465, 27208), (13604, 22930), (17005, 18344)]