81574560

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{821}}^1$

素因数の和:868

約数の個数: 192

約数和(自身を含む): 298287360

約数和(自身を除く): 216712800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 32, 36, 40, 45, 46, 48, 54, 60, 69, 72, 80, 90, 92, 96, 108, 115, 120, 135, 138, 144, 160, 180, 184, 207, 216, 230, 240, 270, 276, 288, 345, 360, 368, 414, 432, 460, 480, 540, 552, 621, 690, 720, 736, 821, 828, 864, 920, 1035, 1080, 1104, 1242, 1380, 1440, 1642, 1656, 1840, 2070, 2160, 2208, 2463, 2484, 2760, 3105, 3284, 3312, 3680, 4105, 4140, 4320, 4926, 4968, 5520, 6210, 6568, 6624, 7389, 8210, 8280, 9852, 9936, 11040, 12315, 12420, 13136, 14778, 16420, 16560, 18883, 19704, 19872, 22167, 24630, 24840, 26272, 29556, 32840, 33120, 36945, 37766, 39408, 44334, 49260, 49680, 56649, 59112, 65680, 73890, 75532, 78816, 88668, 94415, 98520, 99360, 110835, 113298, 118224, 131360, 147780, 151064, 169947, 177336, 188830, 197040, 221670, 226596, 236448, 283245, 295560, 302128, 339894, 354672, 377660, 394080, 443340, 453192, 509841, 566490, 591120, 604256, 679788, 709344, 755320, 849735, 886680, 906384, 1019682, 1132980, 1182240, 1359576, 1510640, 1699470, 1773360, 1812768, 2039364, 2265960, 2549205, 2719152, 3021280, 3398940, 3546720, 4078728, 4531920, 5098410, 5438304, 6797880, 8157456, 9063840, 10196820, 13595760, 16314912, 20393640, 27191520, 40787280, 81574560]

約数ペア:

[(1, 81574560), (2, 40787280), (3, 27191520), (4, 20393640), (5, 16314912), (6, 13595760), (8, 10196820), (9, 9063840), (10, 8157456), (12, 6797880), (15, 5438304), (16, 5098410), (18, 4531920), (20, 4078728), (23, 3546720), (24, 3398940), (27, 3021280), (30, 2719152), (32, 2549205), (36, 2265960), (40, 2039364), (45, 1812768), (46, 1773360), (48, 1699470), (54, 1510640), (60, 1359576), (69, 1182240), (72, 1132980), (80, 1019682), (90, 906384), (92, 886680), (96, 849735), (108, 755320), (115, 709344), (120, 679788), (135, 604256), (138, 591120), (144, 566490), (160, 509841), (180, 453192), (184, 443340), (207, 394080), (216, 377660), (230, 354672), (240, 339894), (270, 302128), (276, 295560), (288, 283245), (345, 236448), (360, 226596), (368, 221670), (414, 197040), (432, 188830), (460, 177336), (480, 169947), (540, 151064), (552, 147780), (621, 131360), (690, 118224), (720, 113298), (736, 110835), (821, 99360), (828, 98520), (864, 94415), (920, 88668), (1035, 78816), (1080, 75532), (1104, 73890), (1242, 65680), (1380, 59112), (1440, 56649), (1642, 49680), (1656, 49260), (1840, 44334), (2070, 39408), (2160, 37766), (2208, 36945), (2463, 33120), (2484, 32840), (2760, 29556), (3105, 26272), (3284, 24840), (3312, 24630), (3680, 22167), (4105, 19872), (4140, 19704), (4320, 18883), (4926, 16560), (4968, 16420), (5520, 14778), (6210, 13136), (6568, 12420), (6624, 12315), (7389, 11040), (8210, 9936), (8280, 9852)]