72807280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:243

約数の個数: 160

約数和(自身を含む): 212736384

約数和(自身を除く): 139929104

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 73, 80, 91, 104, 112, 130, 137, 140, 146, 182, 208, 260, 274, 280, 292, 364, 365, 455, 511, 520, 548, 560, 584, 685, 728, 730, 910, 949, 959, 1022, 1040, 1096, 1168, 1370, 1456, 1460, 1781, 1820, 1898, 1918, 2044, 2192, 2555, 2740, 2920, 3562, 3640, 3796, 3836, 4088, 4745, 4795, 5110, 5480, 5840, 6643, 7124, 7280, 7592, 7672, 8176, 8905, 9490, 9590, 10001, 10220, 10960, 12467, 13286, 14248, 15184, 15344, 17810, 18980, 19180, 20002, 20440, 24934, 26572, 28496, 33215, 35620, 37960, 38360, 40004, 40880, 49868, 50005, 53144, 62335, 66430, 70007, 71240, 75920, 76720, 80008, 99736, 100010, 106288, 124670, 130013, 132860, 140014, 142480, 160016, 199472, 200020, 249340, 260026, 265720, 280028, 350035, 400040, 498680, 520052, 531440, 560056, 650065, 700070, 800080, 910091, 997360, 1040104, 1120112, 1300130, 1400140, 1820182, 2080208, 2600260, 2800280, 3640364, 4550455, 5200520, 5600560, 7280728, 9100910, 10401040, 14561456, 18201820, 36403640, 72807280]

約数ペア:

[(1, 72807280), (2, 36403640), (4, 18201820), (5, 14561456), (7, 10401040), (8, 9100910), (10, 7280728), (13, 5600560), (14, 5200520), (16, 4550455), (20, 3640364), (26, 2800280), (28, 2600260), (35, 2080208), (40, 1820182), (52, 1400140), (56, 1300130), (65, 1120112), (70, 1040104), (73, 997360), (80, 910091), (91, 800080), (104, 700070), (112, 650065), (130, 560056), (137, 531440), (140, 520052), (146, 498680), (182, 400040), (208, 350035), (260, 280028), (274, 265720), (280, 260026), (292, 249340), (364, 200020), (365, 199472), (455, 160016), (511, 142480), (520, 140014), (548, 132860), (560, 130013), (584, 124670), (685, 106288), (728, 100010), (730, 99736), (910, 80008), (949, 76720), (959, 75920), (1022, 71240), (1040, 70007), (1096, 66430), (1168, 62335), (1370, 53144), (1456, 50005), (1460, 49868), (1781, 40880), (1820, 40004), (1898, 38360), (1918, 37960), (2044, 35620), (2192, 33215), (2555, 28496), (2740, 26572), (2920, 24934), (3562, 20440), (3640, 20002), (3796, 19180), (3836, 18980), (4088, 17810), (4745, 15344), (4795, 15184), (5110, 14248), (5480, 13286), (5840, 12467), (6643, 10960), (7124, 10220), (7280, 10001), (7592, 9590), (7672, 9490), (8176, 8905)]