71556680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:271

約数の個数: 128

約数和(自身を含む): 187729920

約数和(自身を除く): 116173240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 23, 26, 31, 40, 46, 52, 62, 65, 92, 104, 115, 124, 130, 155, 184, 193, 230, 248, 260, 299, 310, 386, 403, 460, 520, 598, 620, 713, 772, 806, 920, 965, 1196, 1240, 1426, 1495, 1544, 1612, 1930, 2015, 2392, 2509, 2852, 2990, 3224, 3565, 3860, 4030, 4439, 5018, 5704, 5980, 5983, 7130, 7720, 8060, 8878, 9269, 10036, 11960, 11966, 12545, 14260, 16120, 17756, 18538, 20072, 22195, 23932, 25090, 28520, 29915, 35512, 37076, 44390, 46345, 47864, 50180, 57707, 59830, 74152, 77779, 88780, 92690, 100360, 115414, 119660, 137609, 155558, 177560, 185380, 230828, 239320, 275218, 288535, 311116, 370760, 388895, 461656, 550436, 577070, 622232, 688045, 777790, 1100872, 1154140, 1376090, 1555580, 1788917, 2308280, 2752180, 3111160, 3577834, 5504360, 7155668, 8944585, 14311336, 17889170, 35778340, 71556680]

約数ペア:

[(1, 71556680), (2, 35778340), (4, 17889170), (5, 14311336), (8, 8944585), (10, 7155668), (13, 5504360), (20, 3577834), (23, 3111160), (26, 2752180), (31, 2308280), (40, 1788917), (46, 1555580), (52, 1376090), (62, 1154140), (65, 1100872), (92, 777790), (104, 688045), (115, 622232), (124, 577070), (130, 550436), (155, 461656), (184, 388895), (193, 370760), (230, 311116), (248, 288535), (260, 275218), (299, 239320), (310, 230828), (386, 185380), (403, 177560), (460, 155558), (520, 137609), (598, 119660), (620, 115414), (713, 100360), (772, 92690), (806, 88780), (920, 77779), (965, 74152), (1196, 59830), (1240, 57707), (1426, 50180), (1495, 47864), (1544, 46345), (1612, 44390), (1930, 37076), (2015, 35512), (2392, 29915), (2509, 28520), (2852, 25090), (2990, 23932), (3224, 22195), (3565, 20072), (3860, 18538), (4030, 17756), (4439, 16120), (5018, 14260), (5704, 12545), (5980, 11966), (5983, 11960), (7130, 10036), (7720, 9269), (8060, 8878)]