31985840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{811}}^1$

素因数の和:870

約数の個数: 80

約数和(自身を含む): 81557280

約数和(自身を除く): 49571440

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, 811, 986, 1160, 1360, 1622, 1972, 2320, 2465, 3244, 3944, 4055, 4930, 6488, 7888, 8110, 9860, 12976, 13787, 16220, 19720, 23519, 27574, 32440, 39440, 47038, 55148, 64880, 68935, 94076, 110296, 117595, 137870, 188152, 220592, 235190, 275740, 376304, 399823, 470380, 551480, 799646, 940760, 1102960, 1599292, 1881520, 1999115, 3198584, 3998230, 6397168, 7996460, 15992920, 31985840]

約数ペア:

[(1, 31985840), (2, 15992920), (4, 7996460), (5, 6397168), (8, 3998230), (10, 3198584), (16, 1999115), (17, 1881520), (20, 1599292), (29, 1102960), (34, 940760), (40, 799646), (58, 551480), (68, 470380), (80, 399823), (85, 376304), (116, 275740), (136, 235190), (145, 220592), (170, 188152), (232, 137870), (272, 117595), (290, 110296), (340, 94076), (464, 68935), (493, 64880), (580, 55148), (680, 47038), (811, 39440), (986, 32440), (1160, 27574), (1360, 23519), (1622, 19720), (1972, 16220), (2320, 13787), (2465, 12976), (3244, 9860), (3944, 8110), (4055, 7888), (4930, 6488)]