788445040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{19991}}^1$

素因数の和:20050

約数の個数: 80

約数和(自身を含む): 2007996480

約数和(自身を除く): 1219551440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 34, 40, 58, 68, 80, 85, 116, 136, 145, 170, 232, 272, 290, 340, 464, 493, 580, 680, 986, 1160, 1360, 1972, 2320, 2465, 3944, 4930, 7888, 9860, 19720, 19991, 39440, 39982, 79964, 99955, 159928, 199910, 319856, 339847, 399820, 579739, 679694, 799640, 1159478, 1359388, 1599280, 1699235, 2318956, 2718776, 2898695, 3398470, 4637912, 5437552, 5797390, 6796940, 9275824, 9855563, 11594780, 13593880, 19711126, 23189560, 27187760, 39422252, 46379120, 49277815, 78844504, 98555630, 157689008, 197111260, 394222520, 788445040]

約数ペア:

[(1, 788445040), (2, 394222520), (4, 197111260), (5, 157689008), (8, 98555630), (10, 78844504), (16, 49277815), (17, 46379120), (20, 39422252), (29, 27187760), (34, 23189560), (40, 19711126), (58, 13593880), (68, 11594780), (80, 9855563), (85, 9275824), (116, 6796940), (136, 5797390), (145, 5437552), (170, 4637912), (232, 3398470), (272, 2898695), (290, 2718776), (340, 2318956), (464, 1699235), (493, 1599280), (580, 1359388), (680, 1159478), (986, 799640), (1160, 679694), (1360, 579739), (1972, 399820), (2320, 339847), (2465, 319856), (3944, 199910), (4930, 159928), (7888, 99955), (9860, 79964), (19720, 39982), (19991, 39440)]