7967960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:241

約数の個数: 128

約数和(自身を含む): 24192000

約数和(自身を除く): 16224040

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, 199, 220, 260, 280, 286, 308, 364, 385, 398, 440, 455, 520, 572, 616, 715, 728, 770, 796, 910, 995, 1001, 1144, 1393, 1430, 1540, 1592, 1820, 1990, 2002, 2189, 2587, 2786, 2860, 3080, 3640, 3980, 4004, 4378, 5005, 5174, 5572, 5720, 6965, 7960, 8008, 8756, 10010, 10348, 10945, 11144, 12935, 13930, 15323, 17512, 18109, 20020, 20696, 21890, 25870, 27860, 28457, 30646, 36218, 40040, 43780, 51740, 55720, 56914, 61292, 72436, 76615, 87560, 90545, 103480, 113828, 122584, 142285, 144872, 153230, 181090, 199199, 227656, 284570, 306460, 362180, 398398, 569140, 612920, 724360, 796796, 995995, 1138280, 1593592, 1991990, 3983980, 7967960]

約数ペア:

[(1, 7967960), (2, 3983980), (4, 1991990), (5, 1593592), (7, 1138280), (8, 995995), (10, 796796), (11, 724360), (13, 612920), (14, 569140), (20, 398398), (22, 362180), (26, 306460), (28, 284570), (35, 227656), (40, 199199), (44, 181090), (52, 153230), (55, 144872), (56, 142285), (65, 122584), (70, 113828), (77, 103480), (88, 90545), (91, 87560), (104, 76615), (110, 72436), (130, 61292), (140, 56914), (143, 55720), (154, 51740), (182, 43780), (199, 40040), (220, 36218), (260, 30646), (280, 28457), (286, 27860), (308, 25870), (364, 21890), (385, 20696), (398, 20020), (440, 18109), (455, 17512), (520, 15323), (572, 13930), (616, 12935), (715, 11144), (728, 10945), (770, 10348), (796, 10010), (910, 8756), (995, 8008), (1001, 7960), (1144, 6965), (1393, 5720), (1430, 5572), (1540, 5174), (1592, 5005), (1820, 4378), (1990, 4004), (2002, 3980), (2189, 3640), (2587, 3080), (2786, 2860)]