78287440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:281

約数の個数: 160

約数和(自身を含む): 231413760

約数和(自身を除く): 153126320

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 71, 77, 80, 88, 110, 112, 140, 142, 154, 176, 179, 220, 280, 284, 308, 355, 358, 385, 440, 497, 560, 568, 616, 710, 716, 770, 781, 880, 895, 994, 1136, 1232, 1253, 1420, 1432, 1540, 1562, 1790, 1969, 1988, 2485, 2506, 2840, 2864, 3080, 3124, 3580, 3905, 3938, 3976, 4970, 5012, 5467, 5680, 6160, 6248, 6265, 7160, 7810, 7876, 7952, 9845, 9940, 10024, 10934, 12496, 12530, 12709, 13783, 14320, 15620, 15752, 19690, 19880, 20048, 21868, 25060, 25418, 27335, 27566, 31240, 31504, 39380, 39760, 43736, 50120, 50836, 54670, 55132, 62480, 63545, 68915, 78760, 87472, 88963, 100240, 101672, 109340, 110264, 127090, 137830, 139799, 157520, 177926, 203344, 218680, 220528, 254180, 275660, 279598, 355852, 437360, 444815, 508360, 551320, 559196, 698995, 711704, 889630, 978593, 1016720, 1102640, 1118392, 1397990, 1423408, 1779260, 1957186, 2236784, 2795980, 3558520, 3914372, 4892965, 5591960, 7117040, 7828744, 9785930, 11183920, 15657488, 19571860, 39143720, 78287440]

約数ペア:

[(1, 78287440), (2, 39143720), (4, 19571860), (5, 15657488), (7, 11183920), (8, 9785930), (10, 7828744), (11, 7117040), (14, 5591960), (16, 4892965), (20, 3914372), (22, 3558520), (28, 2795980), (35, 2236784), (40, 1957186), (44, 1779260), (55, 1423408), (56, 1397990), (70, 1118392), (71, 1102640), (77, 1016720), (80, 978593), (88, 889630), (110, 711704), (112, 698995), (140, 559196), (142, 551320), (154, 508360), (176, 444815), (179, 437360), (220, 355852), (280, 279598), (284, 275660), (308, 254180), (355, 220528), (358, 218680), (385, 203344), (440, 177926), (497, 157520), (560, 139799), (568, 137830), (616, 127090), (710, 110264), (716, 109340), (770, 101672), (781, 100240), (880, 88963), (895, 87472), (994, 78760), (1136, 68915), (1232, 63545), (1253, 62480), (1420, 55132), (1432, 54670), (1540, 50836), (1562, 50120), (1790, 43736), (1969, 39760), (1988, 39380), (2485, 31504), (2506, 31240), (2840, 27566), (2864, 27335), (3080, 25418), (3124, 25060), (3580, 21868), (3905, 20048), (3938, 19880), (3976, 19690), (4970, 15752), (5012, 15620), (5467, 14320), (5680, 13783), (6160, 12709), (6248, 12530), (6265, 12496), (7160, 10934), (7810, 10024), (7876, 9940), (7952, 9845)]