28631680

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1$

素因数の和:127

約数の個数: 192

約数和(自身を含む): 87907680

約数和(自身を除く): 59276000

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 64, 70, 77, 80, 83, 88, 98, 110, 112, 128, 140, 154, 160, 166, 176, 196, 220, 224, 245, 280, 308, 320, 332, 352, 385, 392, 415, 440, 448, 490, 539, 560, 581, 616, 640, 664, 704, 770, 784, 830, 880, 896, 913, 980, 1078, 1120, 1162, 1232, 1328, 1408, 1540, 1568, 1660, 1760, 1826, 1960, 2156, 2240, 2324, 2464, 2656, 2695, 2905, 3080, 3136, 3320, 3520, 3652, 3920, 4067, 4312, 4480, 4565, 4648, 4928, 5312, 5390, 5810, 6160, 6272, 6391, 6640, 7040, 7304, 7840, 8134, 8624, 9130, 9296, 9856, 10624, 10780, 11620, 12320, 12782, 13280, 14608, 15680, 16268, 17248, 18260, 18592, 20335, 21560, 23240, 24640, 25564, 26560, 29216, 31360, 31955, 32536, 34496, 36520, 37184, 40670, 43120, 44737, 46480, 49280, 51128, 53120, 58432, 63910, 65072, 68992, 73040, 74368, 81340, 86240, 89474, 92960, 102256, 116864, 127820, 130144, 146080, 162680, 172480, 178948, 185920, 204512, 223685, 255640, 260288, 292160, 325360, 344960, 357896, 371840, 409024, 447370, 511280, 520576, 584320, 650720, 715792, 818048, 894740, 1022560, 1301440, 1431584, 1789480, 2045120, 2602880, 2863168, 3578960, 4090240, 5726336, 7157920, 14315840, 28631680]

約数ペア:

[(1, 28631680), (2, 14315840), (4, 7157920), (5, 5726336), (7, 4090240), (8, 3578960), (10, 2863168), (11, 2602880), (14, 2045120), (16, 1789480), (20, 1431584), (22, 1301440), (28, 1022560), (32, 894740), (35, 818048), (40, 715792), (44, 650720), (49, 584320), (55, 520576), (56, 511280), (64, 447370), (70, 409024), (77, 371840), (80, 357896), (83, 344960), (88, 325360), (98, 292160), (110, 260288), (112, 255640), (128, 223685), (140, 204512), (154, 185920), (160, 178948), (166, 172480), (176, 162680), (196, 146080), (220, 130144), (224, 127820), (245, 116864), (280, 102256), (308, 92960), (320, 89474), (332, 86240), (352, 81340), (385, 74368), (392, 73040), (415, 68992), (440, 65072), (448, 63910), (490, 58432), (539, 53120), (560, 51128), (581, 49280), (616, 46480), (640, 44737), (664, 43120), (704, 40670), (770, 37184), (784, 36520), (830, 34496), (880, 32536), (896, 31955), (913, 31360), (980, 29216), (1078, 26560), (1120, 25564), (1162, 24640), (1232, 23240), (1328, 21560), (1408, 20335), (1540, 18592), (1568, 18260), (1660, 17248), (1760, 16268), (1826, 15680), (1960, 14608), (2156, 13280), (2240, 12782), (2324, 12320), (2464, 11620), (2656, 10780), (2695, 10624), (2905, 9856), (3080, 9296), (3136, 9130), (3320, 8624), (3520, 8134), (3652, 7840), (3920, 7304), (4067, 7040), (4312, 6640), (4480, 6391), (4565, 6272), (4648, 6160), (4928, 5810), (5312, 5390)]