15935920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:243

約数の個数: 160

約数和(自身を含む): 49996800

約数和(自身を除く): 34060880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 176, 182, 199, 208, 220, 260, 280, 286, 308, 364, 385, 398, 440, 455, 520, 560, 572, 616, 715, 728, 770, 796, 880, 910, 995, 1001, 1040, 1144, 1232, 1393, 1430, 1456, 1540, 1592, 1820, 1990, 2002, 2189, 2288, 2587, 2786, 2860, 3080, 3184, 3640, 3980, 4004, 4378, 5005, 5174, 5572, 5720, 6160, 6965, 7280, 7960, 8008, 8756, 10010, 10348, 10945, 11144, 11440, 12935, 13930, 15323, 15920, 16016, 17512, 18109, 20020, 20696, 21890, 22288, 25870, 27860, 28457, 30646, 35024, 36218, 40040, 41392, 43780, 51740, 55720, 56914, 61292, 72436, 76615, 80080, 87560, 90545, 103480, 111440, 113828, 122584, 142285, 144872, 153230, 175120, 181090, 199199, 206960, 227656, 245168, 284570, 289744, 306460, 362180, 398398, 455312, 569140, 612920, 724360, 796796, 995995, 1138280, 1225840, 1448720, 1593592, 1991990, 2276560, 3187184, 3983980, 7967960, 15935920]

約数ペア:

[(1, 15935920), (2, 7967960), (4, 3983980), (5, 3187184), (7, 2276560), (8, 1991990), (10, 1593592), (11, 1448720), (13, 1225840), (14, 1138280), (16, 995995), (20, 796796), (22, 724360), (26, 612920), (28, 569140), (35, 455312), (40, 398398), (44, 362180), (52, 306460), (55, 289744), (56, 284570), (65, 245168), (70, 227656), (77, 206960), (80, 199199), (88, 181090), (91, 175120), (104, 153230), (110, 144872), (112, 142285), (130, 122584), (140, 113828), (143, 111440), (154, 103480), (176, 90545), (182, 87560), (199, 80080), (208, 76615), (220, 72436), (260, 61292), (280, 56914), (286, 55720), (308, 51740), (364, 43780), (385, 41392), (398, 40040), (440, 36218), (455, 35024), (520, 30646), (560, 28457), (572, 27860), (616, 25870), (715, 22288), (728, 21890), (770, 20696), (796, 20020), (880, 18109), (910, 17512), (995, 16016), (1001, 15920), (1040, 15323), (1144, 13930), (1232, 12935), (1393, 11440), (1430, 11144), (1456, 10945), (1540, 10348), (1592, 10010), (1820, 8756), (1990, 8008), (2002, 7960), (2189, 7280), (2288, 6965), (2587, 6160), (2786, 5720), (2860, 5572), (3080, 5174), (3184, 5005), (3640, 4378), (3980, 4004)]