28145520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:160

約数の個数: 240

約数和(自身を含む): 106159872

約数和(自身を除く): 78014352

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 31, 36, 39, 40, 45, 48, 52, 60, 62, 65, 72, 78, 80, 90, 93, 97, 104, 117, 120, 124, 130, 144, 155, 156, 180, 186, 194, 195, 208, 234, 240, 248, 260, 279, 291, 310, 312, 360, 372, 388, 390, 403, 465, 468, 485, 496, 520, 558, 582, 585, 620, 624, 720, 744, 776, 780, 806, 873, 930, 936, 970, 1040, 1116, 1164, 1170, 1209, 1240, 1261, 1395, 1455, 1488, 1552, 1560, 1612, 1746, 1860, 1872, 1940, 2015, 2232, 2328, 2340, 2418, 2480, 2522, 2790, 2910, 3007, 3120, 3224, 3492, 3627, 3720, 3783, 3880, 4030, 4365, 4464, 4656, 4680, 4836, 5044, 5580, 5820, 6014, 6045, 6305, 6448, 6984, 7254, 7440, 7566, 7760, 8060, 8730, 9021, 9360, 9672, 10088, 11160, 11349, 11640, 12028, 12090, 12610, 13968, 14508, 15035, 15132, 16120, 17460, 18042, 18135, 18915, 19344, 20176, 22320, 22698, 23280, 24056, 24180, 25220, 27063, 29016, 30070, 30264, 32240, 34920, 36084, 36270, 37830, 39091, 45105, 45396, 48112, 48360, 50440, 54126, 56745, 58032, 60140, 60528, 69840, 72168, 72540, 75660, 78182, 90210, 90792, 96720, 100880, 108252, 113490, 117273, 120280, 135315, 144336, 145080, 151320, 156364, 180420, 181584, 195455, 216504, 226980, 234546, 240560, 270630, 290160, 302640, 312728, 351819, 360840, 390910, 433008, 453960, 469092, 541260, 586365, 625456, 703638, 721680, 781820, 907920, 938184, 1082520, 1172730, 1407276, 1563640, 1759095, 1876368, 2165040, 2345460, 2814552, 3127280, 3518190, 4690920, 5629104, 7036380, 9381840, 14072760, 28145520]

約数ペア:

[(1, 28145520), (2, 14072760), (3, 9381840), (4, 7036380), (5, 5629104), (6, 4690920), (8, 3518190), (9, 3127280), (10, 2814552), (12, 2345460), (13, 2165040), (15, 1876368), (16, 1759095), (18, 1563640), (20, 1407276), (24, 1172730), (26, 1082520), (30, 938184), (31, 907920), (36, 781820), (39, 721680), (40, 703638), (45, 625456), (48, 586365), (52, 541260), (60, 469092), (62, 453960), (65, 433008), (72, 390910), (78, 360840), (80, 351819), (90, 312728), (93, 302640), (97, 290160), (104, 270630), (117, 240560), (120, 234546), (124, 226980), (130, 216504), (144, 195455), (155, 181584), (156, 180420), (180, 156364), (186, 151320), (194, 145080), (195, 144336), (208, 135315), (234, 120280), (240, 117273), (248, 113490), (260, 108252), (279, 100880), (291, 96720), (310, 90792), (312, 90210), (360, 78182), (372, 75660), (388, 72540), (390, 72168), (403, 69840), (465, 60528), (468, 60140), (485, 58032), (496, 56745), (520, 54126), (558, 50440), (582, 48360), (585, 48112), (620, 45396), (624, 45105), (720, 39091), (744, 37830), (776, 36270), (780, 36084), (806, 34920), (873, 32240), (930, 30264), (936, 30070), (970, 29016), (1040, 27063), (1116, 25220), (1164, 24180), (1170, 24056), (1209, 23280), (1240, 22698), (1261, 22320), (1395, 20176), (1455, 19344), (1488, 18915), (1552, 18135), (1560, 18042), (1612, 17460), (1746, 16120), (1860, 15132), (1872, 15035), (1940, 14508), (2015, 13968), (2232, 12610), (2328, 12090), (2340, 12028), (2418, 11640), (2480, 11349), (2522, 11160), (2790, 10088), (2910, 9672), (3007, 9360), (3120, 9021), (3224, 8730), (3492, 8060), (3627, 7760), (3720, 7566), (3783, 7440), (3880, 7254), (4030, 6984), (4365, 6448), (4464, 6305), (4656, 6045), (4680, 6014), (4836, 5820), (5044, 5580)]