278869360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2663}}^1$

素因数の和:2711

約数の個数: 160

約数和(自身を含む): 856230912

約数和(自身を除く): 577361552

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 80, 85, 88, 110, 112, 119, 136, 140, 154, 170, 176, 187, 220, 238, 272, 280, 308, 340, 374, 385, 440, 476, 560, 595, 616, 680, 748, 770, 880, 935, 952, 1190, 1232, 1309, 1360, 1496, 1540, 1870, 1904, 2380, 2618, 2663, 2992, 3080, 3740, 4760, 5236, 5326, 6160, 6545, 7480, 9520, 10472, 10652, 13090, 13315, 14960, 18641, 20944, 21304, 26180, 26630, 29293, 37282, 42608, 45271, 52360, 53260, 58586, 74564, 90542, 93205, 104720, 106520, 117172, 146465, 149128, 181084, 186410, 205051, 213040, 226355, 234344, 292930, 298256, 316897, 362168, 372820, 410102, 452710, 468688, 497981, 585860, 633794, 724336, 745640, 820204, 905420, 995962, 1025255, 1171720, 1267588, 1491280, 1584485, 1640408, 1810840, 1991924, 2050510, 2343440, 2489905, 2535176, 3168970, 3280816, 3485867, 3621680, 3983848, 4101020, 4979810, 5070352, 6337940, 6971734, 7967696, 8202040, 9959620, 12675880, 13943468, 16404080, 17429335, 19919240, 25351760, 27886936, 34858670, 39838480, 55773872, 69717340, 139434680, 278869360]

約数ペア:

[(1, 278869360), (2, 139434680), (4, 69717340), (5, 55773872), (7, 39838480), (8, 34858670), (10, 27886936), (11, 25351760), (14, 19919240), (16, 17429335), (17, 16404080), (20, 13943468), (22, 12675880), (28, 9959620), (34, 8202040), (35, 7967696), (40, 6971734), (44, 6337940), (55, 5070352), (56, 4979810), (68, 4101020), (70, 3983848), (77, 3621680), (80, 3485867), (85, 3280816), (88, 3168970), (110, 2535176), (112, 2489905), (119, 2343440), (136, 2050510), (140, 1991924), (154, 1810840), (170, 1640408), (176, 1584485), (187, 1491280), (220, 1267588), (238, 1171720), (272, 1025255), (280, 995962), (308, 905420), (340, 820204), (374, 745640), (385, 724336), (440, 633794), (476, 585860), (560, 497981), (595, 468688), (616, 452710), (680, 410102), (748, 372820), (770, 362168), (880, 316897), (935, 298256), (952, 292930), (1190, 234344), (1232, 226355), (1309, 213040), (1360, 205051), (1496, 186410), (1540, 181084), (1870, 149128), (1904, 146465), (2380, 117172), (2618, 106520), (2663, 104720), (2992, 93205), (3080, 90542), (3740, 74564), (4760, 58586), (5236, 53260), (5326, 52360), (6160, 45271), (6545, 42608), (7480, 37282), (9520, 29293), (10472, 26630), (10652, 26180), (13090, 21304), (13315, 20944), (14960, 18641)]