251982480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:469

約数の個数: 160

約数和(自身を含む): 822804480

約数和(自身を除く): 570822000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 191, 230, 239, 240, 276, 345, 368, 382, 460, 478, 552, 573, 690, 717, 764, 920, 955, 956, 1104, 1146, 1195, 1380, 1434, 1528, 1840, 1910, 1912, 2292, 2390, 2760, 2865, 2868, 3056, 3585, 3820, 3824, 4393, 4584, 4780, 5497, 5520, 5730, 5736, 7170, 7640, 8786, 9168, 9560, 10994, 11460, 11472, 13179, 14340, 15280, 16491, 17572, 19120, 21965, 21988, 22920, 26358, 27485, 28680, 32982, 35144, 43930, 43976, 45649, 45840, 52716, 54970, 57360, 65895, 65964, 70288, 82455, 87860, 87952, 91298, 105432, 109940, 131790, 131928, 136947, 164910, 175720, 182596, 210864, 219880, 228245, 263580, 263856, 273894, 329820, 351440, 365192, 439760, 456490, 527160, 547788, 659640, 684735, 730384, 912980, 1049927, 1054320, 1095576, 1319280, 1369470, 1825960, 2099854, 2191152, 2738940, 3149781, 3651920, 4199708, 5249635, 5477880, 6299562, 8399416, 10499270, 10955760, 12599124, 15748905, 16798832, 20998540, 25198248, 31497810, 41997080, 50396496, 62995620, 83994160, 125991240, 251982480]

約数ペア:

[(1, 251982480), (2, 125991240), (3, 83994160), (4, 62995620), (5, 50396496), (6, 41997080), (8, 31497810), (10, 25198248), (12, 20998540), (15, 16798832), (16, 15748905), (20, 12599124), (23, 10955760), (24, 10499270), (30, 8399416), (40, 6299562), (46, 5477880), (48, 5249635), (60, 4199708), (69, 3651920), (80, 3149781), (92, 2738940), (115, 2191152), (120, 2099854), (138, 1825960), (184, 1369470), (191, 1319280), (230, 1095576), (239, 1054320), (240, 1049927), (276, 912980), (345, 730384), (368, 684735), (382, 659640), (460, 547788), (478, 527160), (552, 456490), (573, 439760), (690, 365192), (717, 351440), (764, 329820), (920, 273894), (955, 263856), (956, 263580), (1104, 228245), (1146, 219880), (1195, 210864), (1380, 182596), (1434, 175720), (1528, 164910), (1840, 136947), (1910, 131928), (1912, 131790), (2292, 109940), (2390, 105432), (2760, 91298), (2865, 87952), (2868, 87860), (3056, 82455), (3585, 70288), (3820, 65964), (3824, 65895), (4393, 57360), (4584, 54970), (4780, 52716), (5497, 45840), (5520, 45649), (5730, 43976), (5736, 43930), (7170, 35144), (7640, 32982), (8786, 28680), (9168, 27485), (9560, 26358), (10994, 22920), (11460, 21988), (11472, 21965), (13179, 19120), (14340, 17572), (15280, 16491)]