20011991040

素因数分解:

$2^{14}\times 3^2\times 5^1\times {\mathrm{27143}}^1$

素因数の和:27182

約数の個数: 180

約数和(自身を含む): 69375340944

約数和(自身を除く): 49363349904

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 960, 1024, 1152, 1280, 1440, 1536, 1920, 2048, 2304, 2560, 2880, 3072, 3840, 4096, 4608, 5120, 5760, 6144, 7680, 8192, 9216, 10240, 11520, 12288, 15360, 16384, 18432, 20480, 23040, 24576, 27143, 30720, 36864, 40960, 46080, 49152, 54286, 61440, 73728, 81429, 81920, 92160, 108572, 122880, 135715, 147456, 162858, 184320, 217144, 244287, 245760, 271430, 325716, 368640, 407145, 434288, 488574, 542860, 651432, 737280, 814290, 868576, 977148, 1085720, 1221435, 1302864, 1628580, 1737152, 1954296, 2171440, 2442870, 2605728, 3257160, 3474304, 3908592, 4342880, 4885740, 5211456, 6514320, 6948608, 7817184, 8685760, 9771480, 10422912, 13028640, 13897216, 15634368, 17371520, 19542960, 20845824, 26057280, 27794432, 31268736, 34743040, 39085920, 41691648, 52114560, 55588864, 62537472, 69486080, 78171840, 83383296, 104229120, 111177728, 125074944, 138972160, 156343680, 166766592, 208458240, 222355456, 250149888, 277944320, 312687360, 333533184, 416916480, 444710912, 500299776, 555888640, 625374720, 667066368, 833832960, 1000599552, 1111777280, 1250749440, 1334132736, 1667665920, 2001199104, 2223554560, 2501498880, 3335331840, 4002398208, 5002997760, 6670663680, 10005995520, 20011991040]

約数ペア:

[(1, 20011991040), (2, 10005995520), (3, 6670663680), (4, 5002997760), (5, 4002398208), (6, 3335331840), (8, 2501498880), (9, 2223554560), (10, 2001199104), (12, 1667665920), (15, 1334132736), (16, 1250749440), (18, 1111777280), (20, 1000599552), (24, 833832960), (30, 667066368), (32, 625374720), (36, 555888640), (40, 500299776), (45, 444710912), (48, 416916480), (60, 333533184), (64, 312687360), (72, 277944320), (80, 250149888), (90, 222355456), (96, 208458240), (120, 166766592), (128, 156343680), (144, 138972160), (160, 125074944), (180, 111177728), (192, 104229120), (240, 83383296), (256, 78171840), (288, 69486080), (320, 62537472), (360, 55588864), (384, 52114560), (480, 41691648), (512, 39085920), (576, 34743040), (640, 31268736), (720, 27794432), (768, 26057280), (960, 20845824), (1024, 19542960), (1152, 17371520), (1280, 15634368), (1440, 13897216), (1536, 13028640), (1920, 10422912), (2048, 9771480), (2304, 8685760), (2560, 7817184), (2880, 6948608), (3072, 6514320), (3840, 5211456), (4096, 4885740), (4608, 4342880), (5120, 3908592), (5760, 3474304), (6144, 3257160), (7680, 2605728), (8192, 2442870), (9216, 2171440), (10240, 1954296), (11520, 1737152), (12288, 1628580), (15360, 1302864), (16384, 1221435), (18432, 1085720), (20480, 977148), (23040, 868576), (24576, 814290), (27143, 737280), (30720, 651432), (36864, 542860), (40960, 488574), (46080, 434288), (49152, 407145), (54286, 368640), (61440, 325716), (73728, 271430), (81429, 245760), (81920, 244287), (92160, 217144), (108572, 184320), (122880, 162858), (135715, 147456)]