71631560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1789}}^1$

素因数の和:1831

約数の個数: 128

約数和(自身を含む): 216518400

約数和(自身を除く): 144886840

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1430, 1540, 1789, 1820, 2002, 2860, 3080, 3578, 3640, 4004, 5005, 5720, 7156, 8008, 8945, 10010, 12523, 14312, 17890, 19679, 20020, 23257, 25046, 35780, 39358, 40040, 46514, 50092, 62615, 71560, 78716, 93028, 98395, 100184, 116285, 125230, 137753, 157432, 162799, 186056, 196790, 232570, 250460, 255827, 275506, 325598, 393580, 465140, 500920, 511654, 551012, 651196, 688765, 787160, 813995, 930280, 1023308, 1102024, 1279135, 1302392, 1377530, 1627990, 1790789, 2046616, 2558270, 2755060, 3255980, 3581578, 5116540, 5510120, 6511960, 7163156, 8953945, 10233080, 14326312, 17907890, 35815780, 71631560]

約数ペア:

[(1, 71631560), (2, 35815780), (4, 17907890), (5, 14326312), (7, 10233080), (8, 8953945), (10, 7163156), (11, 6511960), (13, 5510120), (14, 5116540), (20, 3581578), (22, 3255980), (26, 2755060), (28, 2558270), (35, 2046616), (40, 1790789), (44, 1627990), (52, 1377530), (55, 1302392), (56, 1279135), (65, 1102024), (70, 1023308), (77, 930280), (88, 813995), (91, 787160), (104, 688765), (110, 651196), (130, 551012), (140, 511654), (143, 500920), (154, 465140), (182, 393580), (220, 325598), (260, 275506), (280, 255827), (286, 250460), (308, 232570), (364, 196790), (385, 186056), (440, 162799), (455, 157432), (520, 137753), (572, 125230), (616, 116285), (715, 100184), (728, 98395), (770, 93028), (910, 78716), (1001, 71560), (1144, 62615), (1430, 50092), (1540, 46514), (1789, 40040), (1820, 39358), (2002, 35780), (2860, 25046), (3080, 23257), (3578, 20020), (3640, 19679), (4004, 17890), (5005, 14312), (5720, 12523), (7156, 10010), (8008, 8945)]