639899760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:587

約数の個数: 160

約数和(自身を含む): 2039780160

約数和(自身を除く): 1399880400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 109, 120, 122, 183, 218, 240, 244, 305, 327, 366, 401, 436, 488, 545, 610, 654, 732, 802, 872, 915, 976, 1090, 1203, 1220, 1308, 1464, 1604, 1635, 1744, 1830, 2005, 2180, 2406, 2440, 2616, 2928, 3208, 3270, 3660, 4010, 4360, 4812, 4880, 5232, 6015, 6416, 6540, 6649, 7320, 8020, 8720, 9624, 12030, 13080, 13298, 14640, 16040, 19248, 19947, 24060, 24461, 26160, 26596, 32080, 33245, 39894, 43709, 48120, 48922, 53192, 66490, 73383, 79788, 87418, 96240, 97844, 99735, 106384, 122305, 131127, 132980, 146766, 159576, 174836, 195688, 199470, 218545, 244610, 262254, 265960, 293532, 319152, 349672, 366915, 391376, 398940, 437090, 489220, 524508, 531920, 587064, 655635, 699344, 733830, 797880, 874180, 978440, 1049016, 1174128, 1311270, 1467660, 1595760, 1748360, 1956880, 2098032, 2622540, 2666249, 2935320, 3496720, 5245080, 5332498, 5870640, 7998747, 10490160, 10664996, 13331245, 15997494, 21329992, 26662490, 31994988, 39993735, 42659984, 53324980, 63989976, 79987470, 106649960, 127979952, 159974940, 213299920, 319949880, 639899760]

約数ペア:

[(1, 639899760), (2, 319949880), (3, 213299920), (4, 159974940), (5, 127979952), (6, 106649960), (8, 79987470), (10, 63989976), (12, 53324980), (15, 42659984), (16, 39993735), (20, 31994988), (24, 26662490), (30, 21329992), (40, 15997494), (48, 13331245), (60, 10664996), (61, 10490160), (80, 7998747), (109, 5870640), (120, 5332498), (122, 5245080), (183, 3496720), (218, 2935320), (240, 2666249), (244, 2622540), (305, 2098032), (327, 1956880), (366, 1748360), (401, 1595760), (436, 1467660), (488, 1311270), (545, 1174128), (610, 1049016), (654, 978440), (732, 874180), (802, 797880), (872, 733830), (915, 699344), (976, 655635), (1090, 587064), (1203, 531920), (1220, 524508), (1308, 489220), (1464, 437090), (1604, 398940), (1635, 391376), (1744, 366915), (1830, 349672), (2005, 319152), (2180, 293532), (2406, 265960), (2440, 262254), (2616, 244610), (2928, 218545), (3208, 199470), (3270, 195688), (3660, 174836), (4010, 159576), (4360, 146766), (4812, 132980), (4880, 131127), (5232, 122305), (6015, 106384), (6416, 99735), (6540, 97844), (6649, 96240), (7320, 87418), (8020, 79788), (8720, 73383), (9624, 66490), (12030, 53192), (13080, 48922), (13298, 48120), (14640, 43709), (16040, 39894), (19248, 33245), (19947, 32080), (24060, 26596), (24461, 26160)]