31081680

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{881}}^1$

素因数の和:914

約数の個数: 180

約数和(自身を含む): 121562532

約数和(自身を除く): 90480852

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 881, 882, 980, 1008, 1176, 1260, 1470, 1680, 1762, 1764, 1960, 2205, 2352, 2520, 2643, 2940, 3524, 3528, 3920, 4405, 4410, 5040, 5286, 5880, 6167, 7048, 7056, 7929, 8810, 8820, 10572, 11760, 12334, 13215, 14096, 15858, 17620, 17640, 18501, 21144, 24668, 26430, 30835, 31716, 35240, 35280, 37002, 39645, 42288, 43169, 49336, 52860, 55503, 61670, 63432, 70480, 74004, 79290, 86338, 92505, 98672, 105720, 111006, 123340, 126864, 129507, 148008, 158580, 172676, 185010, 211440, 215845, 222012, 246680, 259014, 277515, 296016, 317160, 345352, 370020, 388521, 431690, 444024, 493360, 518028, 555030, 634320, 647535, 690704, 740040, 777042, 863380, 888048, 1036056, 1110060, 1295070, 1480080, 1554084, 1726760, 1942605, 2072112, 2220120, 2590140, 3108168, 3453520, 3885210, 4440240, 5180280, 6216336, 7770420, 10360560, 15540840, 31081680]

約数ペア:

[(1, 31081680), (2, 15540840), (3, 10360560), (4, 7770420), (5, 6216336), (6, 5180280), (7, 4440240), (8, 3885210), (9, 3453520), (10, 3108168), (12, 2590140), (14, 2220120), (15, 2072112), (16, 1942605), (18, 1726760), (20, 1554084), (21, 1480080), (24, 1295070), (28, 1110060), (30, 1036056), (35, 888048), (36, 863380), (40, 777042), (42, 740040), (45, 690704), (48, 647535), (49, 634320), (56, 555030), (60, 518028), (63, 493360), (70, 444024), (72, 431690), (80, 388521), (84, 370020), (90, 345352), (98, 317160), (105, 296016), (112, 277515), (120, 259014), (126, 246680), (140, 222012), (144, 215845), (147, 211440), (168, 185010), (180, 172676), (196, 158580), (210, 148008), (240, 129507), (245, 126864), (252, 123340), (280, 111006), (294, 105720), (315, 98672), (336, 92505), (360, 86338), (392, 79290), (420, 74004), (441, 70480), (490, 63432), (504, 61670), (560, 55503), (588, 52860), (630, 49336), (720, 43169), (735, 42288), (784, 39645), (840, 37002), (881, 35280), (882, 35240), (980, 31716), (1008, 30835), (1176, 26430), (1260, 24668), (1470, 21144), (1680, 18501), (1762, 17640), (1764, 17620), (1960, 15858), (2205, 14096), (2352, 13215), (2520, 12334), (2643, 11760), (2940, 10572), (3524, 8820), (3528, 8810), (3920, 7929), (4405, 7056), (4410, 7048), (5040, 6167), (5286, 5880)]