21242394080

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{983}}^1\times {\mathrm{1031}}^1$

素因数の和:2160

約数の個数: 96

約数和(自身を含む): 50668789248

約数和(自身を除く): 29426395168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 983, 1031, 1048, 1310, 1966, 2062, 2096, 2620, 3932, 4124, 4192, 4915, 5155, 5240, 7864, 8248, 9830, 10310, 10480, 15728, 16496, 19660, 20620, 20960, 31456, 32992, 39320, 41240, 78640, 82480, 128773, 135061, 157280, 164960, 257546, 270122, 515092, 540244, 643865, 675305, 1013473, 1030184, 1080488, 1287730, 1350610, 2026946, 2060368, 2160976, 2575460, 2701220, 4053892, 4120736, 4321952, 5067365, 5150920, 5402440, 8107784, 10134730, 10301840, 10804880, 16215568, 20269460, 20603680, 21609760, 32431136, 40538920, 81077840, 132764963, 162155680, 265529926, 531059852, 663824815, 1062119704, 1327649630, 2124239408, 2655299260, 4248478816, 5310598520, 10621197040, 21242394080]

約数ペア:

[(1, 21242394080), (2, 10621197040), (4, 5310598520), (5, 4248478816), (8, 2655299260), (10, 2124239408), (16, 1327649630), (20, 1062119704), (32, 663824815), (40, 531059852), (80, 265529926), (131, 162155680), (160, 132764963), (262, 81077840), (524, 40538920), (655, 32431136), (983, 21609760), (1031, 20603680), (1048, 20269460), (1310, 16215568), (1966, 10804880), (2062, 10301840), (2096, 10134730), (2620, 8107784), (3932, 5402440), (4124, 5150920), (4192, 5067365), (4915, 4321952), (5155, 4120736), (5240, 4053892), (7864, 2701220), (8248, 2575460), (9830, 2160976), (10310, 2060368), (10480, 2026946), (15728, 1350610), (16496, 1287730), (19660, 1080488), (20620, 1030184), (20960, 1013473), (31456, 675305), (32992, 643865), (39320, 540244), (41240, 515092), (78640, 270122), (82480, 257546), (128773, 164960), (135061, 157280)]