31579920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1907}}^1$

素因数の和:1949

約数の個数: 120

約数和(自身を含む): 110725056

約数和(自身を除く): 79145136

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1380, 1656, 1840, 1907, 2070, 2760, 3312, 3814, 4140, 5520, 5721, 7628, 8280, 9535, 11442, 15256, 16560, 17163, 19070, 22884, 28605, 30512, 34326, 38140, 43861, 45768, 57210, 68652, 76280, 85815, 87722, 91536, 114420, 131583, 137304, 152560, 171630, 175444, 219305, 228840, 263166, 274608, 343260, 350888, 394749, 438610, 457680, 526332, 657915, 686520, 701776, 789498, 877220, 1052664, 1315830, 1373040, 1578996, 1754440, 1973745, 2105328, 2631660, 3157992, 3508880, 3947490, 5263320, 6315984, 7894980, 10526640, 15789960, 31579920]

約数ペア:

[(1, 31579920), (2, 15789960), (3, 10526640), (4, 7894980), (5, 6315984), (6, 5263320), (8, 3947490), (9, 3508880), (10, 3157992), (12, 2631660), (15, 2105328), (16, 1973745), (18, 1754440), (20, 1578996), (23, 1373040), (24, 1315830), (30, 1052664), (36, 877220), (40, 789498), (45, 701776), (46, 686520), (48, 657915), (60, 526332), (69, 457680), (72, 438610), (80, 394749), (90, 350888), (92, 343260), (115, 274608), (120, 263166), (138, 228840), (144, 219305), (180, 175444), (184, 171630), (207, 152560), (230, 137304), (240, 131583), (276, 114420), (345, 91536), (360, 87722), (368, 85815), (414, 76280), (460, 68652), (552, 57210), (690, 45768), (720, 43861), (828, 38140), (920, 34326), (1035, 30512), (1104, 28605), (1380, 22884), (1656, 19070), (1840, 17163), (1907, 16560), (2070, 15256), (2760, 11442), (3312, 9535), (3814, 8280), (4140, 7628), (5520, 5721)]