81045120

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1$

素因数の和:243

約数の個数: 256

約数和(自身を含む): 296110080

約数和(自身を除く): 215064960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 17, 20, 24, 26, 30, 32, 34, 39, 40, 48, 51, 52, 60, 64, 65, 68, 78, 80, 85, 96, 102, 104, 120, 128, 130, 136, 156, 160, 170, 191, 192, 195, 204, 208, 221, 240, 255, 260, 272, 312, 320, 340, 382, 384, 390, 408, 416, 442, 480, 510, 520, 544, 573, 624, 640, 663, 680, 764, 780, 816, 832, 884, 955, 960, 1020, 1040, 1088, 1105, 1146, 1248, 1326, 1360, 1528, 1560, 1632, 1664, 1768, 1910, 1920, 2040, 2080, 2176, 2210, 2292, 2483, 2496, 2652, 2720, 2865, 3056, 3120, 3247, 3264, 3315, 3536, 3820, 4080, 4160, 4420, 4584, 4966, 4992, 5304, 5440, 5730, 6112, 6240, 6494, 6528, 6630, 7072, 7449, 7640, 8160, 8320, 8840, 9168, 9741, 9932, 10608, 10880, 11460, 12224, 12415, 12480, 12988, 13260, 14144, 14898, 15280, 16235, 16320, 17680, 18336, 19482, 19864, 21216, 22920, 24448, 24830, 24960, 25976, 26520, 28288, 29796, 30560, 32470, 32640, 35360, 36672, 37245, 38964, 39728, 42211, 42432, 45840, 48705, 49660, 51952, 53040, 59592, 61120, 64940, 70720, 73344, 74490, 77928, 79456, 84422, 84864, 91680, 97410, 99320, 103904, 106080, 119184, 122240, 126633, 129880, 141440, 148980, 155856, 158912, 168844, 183360, 194820, 198640, 207808, 211055, 212160, 238368, 253266, 259760, 297960, 311712, 317824, 337688, 366720, 389640, 397280, 415616, 422110, 424320, 476736, 506532, 519520, 595920, 623424, 633165, 675376, 779280, 794560, 844220, 953472, 1013064, 1039040, 1191840, 1246848, 1266330, 1350752, 1558560, 1589120, 1688440, 2026128, 2078080, 2383680, 2532660, 2701504, 3117120, 3376880, 4052256, 4767360, 5065320, 5403008, 6234240, 6753760, 8104512, 10130640, 13507520, 16209024, 20261280, 27015040, 40522560, 81045120]

約数ペア:

[(1, 81045120), (2, 40522560), (3, 27015040), (4, 20261280), (5, 16209024), (6, 13507520), (8, 10130640), (10, 8104512), (12, 6753760), (13, 6234240), (15, 5403008), (16, 5065320), (17, 4767360), (20, 4052256), (24, 3376880), (26, 3117120), (30, 2701504), (32, 2532660), (34, 2383680), (39, 2078080), (40, 2026128), (48, 1688440), (51, 1589120), (52, 1558560), (60, 1350752), (64, 1266330), (65, 1246848), (68, 1191840), (78, 1039040), (80, 1013064), (85, 953472), (96, 844220), (102, 794560), (104, 779280), (120, 675376), (128, 633165), (130, 623424), (136, 595920), (156, 519520), (160, 506532), (170, 476736), (191, 424320), (192, 422110), (195, 415616), (204, 397280), (208, 389640), (221, 366720), (240, 337688), (255, 317824), (260, 311712), (272, 297960), (312, 259760), (320, 253266), (340, 238368), (382, 212160), (384, 211055), (390, 207808), (408, 198640), (416, 194820), (442, 183360), (480, 168844), (510, 158912), (520, 155856), (544, 148980), (573, 141440), (624, 129880), (640, 126633), (663, 122240), (680, 119184), (764, 106080), (780, 103904), (816, 99320), (832, 97410), (884, 91680), (955, 84864), (960, 84422), (1020, 79456), (1040, 77928), (1088, 74490), (1105, 73344), (1146, 70720), (1248, 64940), (1326, 61120), (1360, 59592), (1528, 53040), (1560, 51952), (1632, 49660), (1664, 48705), (1768, 45840), (1910, 42432), (1920, 42211), (2040, 39728), (2080, 38964), (2176, 37245), (2210, 36672), (2292, 35360), (2483, 32640), (2496, 32470), (2652, 30560), (2720, 29796), (2865, 28288), (3056, 26520), (3120, 25976), (3247, 24960), (3264, 24830), (3315, 24448), (3536, 22920), (3820, 21216), (4080, 19864), (4160, 19482), (4420, 18336), (4584, 17680), (4966, 16320), (4992, 16235), (5304, 15280), (5440, 14898), (5730, 14144), (6112, 13260), (6240, 12988), (6494, 12480), (6528, 12415), (6630, 12224), (7072, 11460), (7449, 10880), (7640, 10608), (8160, 9932), (8320, 9741), (8840, 9168)]