82981600

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:213

約数の個数: 144

約数和(自身を含む): 223110720

約数和(自身を除く): 140129120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 79, 80, 100, 101, 104, 130, 158, 160, 200, 202, 208, 260, 316, 325, 395, 400, 404, 416, 505, 520, 632, 650, 790, 800, 808, 1010, 1027, 1040, 1264, 1300, 1313, 1580, 1616, 1975, 2020, 2054, 2080, 2525, 2528, 2600, 2626, 3160, 3232, 3950, 4040, 4108, 5050, 5135, 5200, 5252, 6320, 6565, 7900, 7979, 8080, 8216, 10100, 10270, 10400, 10504, 12640, 13130, 15800, 15958, 16160, 16432, 20200, 20540, 21008, 25675, 26260, 31600, 31916, 32825, 32864, 39895, 40400, 41080, 42016, 51350, 52520, 63200, 63832, 65650, 79790, 80800, 82160, 102700, 103727, 105040, 127664, 131300, 159580, 164320, 199475, 205400, 207454, 210080, 255328, 262600, 319160, 398950, 410800, 414908, 518635, 525200, 638320, 797900, 821600, 829816, 1037270, 1050400, 1276640, 1595800, 1659632, 2074540, 2593175, 3191600, 3319264, 4149080, 5186350, 6383200, 8298160, 10372700, 16596320, 20745400, 41490800, 82981600]

約数ペア:

[(1, 82981600), (2, 41490800), (4, 20745400), (5, 16596320), (8, 10372700), (10, 8298160), (13, 6383200), (16, 5186350), (20, 4149080), (25, 3319264), (26, 3191600), (32, 2593175), (40, 2074540), (50, 1659632), (52, 1595800), (65, 1276640), (79, 1050400), (80, 1037270), (100, 829816), (101, 821600), (104, 797900), (130, 638320), (158, 525200), (160, 518635), (200, 414908), (202, 410800), (208, 398950), (260, 319160), (316, 262600), (325, 255328), (395, 210080), (400, 207454), (404, 205400), (416, 199475), (505, 164320), (520, 159580), (632, 131300), (650, 127664), (790, 105040), (800, 103727), (808, 102700), (1010, 82160), (1027, 80800), (1040, 79790), (1264, 65650), (1300, 63832), (1313, 63200), (1580, 52520), (1616, 51350), (1975, 42016), (2020, 41080), (2054, 40400), (2080, 39895), (2525, 32864), (2528, 32825), (2600, 31916), (2626, 31600), (3160, 26260), (3232, 25675), (3950, 21008), (4040, 20540), (4108, 20200), (5050, 16432), (5135, 16160), (5200, 15958), (5252, 15800), (6320, 13130), (6565, 12640), (7900, 10504), (7979, 10400), (8080, 10270), (8216, 10100)]