87975680

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1$

素因数の和:362

約数の個数: 144

約数和(自身を含む): 241061184

約数和(自身を除く): 153085504

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 128, 130, 136, 160, 170, 208, 221, 256, 260, 272, 311, 320, 340, 416, 442, 520, 544, 622, 640, 680, 832, 884, 1040, 1088, 1105, 1244, 1280, 1360, 1555, 1664, 1768, 2080, 2176, 2210, 2488, 2720, 3110, 3328, 3536, 4043, 4160, 4352, 4420, 4976, 5287, 5440, 6220, 7072, 8086, 8320, 8840, 9952, 10574, 10880, 12440, 14144, 16172, 16640, 17680, 19904, 20215, 21148, 21760, 24880, 26435, 28288, 32344, 35360, 39808, 40430, 42296, 49760, 52870, 56576, 64688, 68731, 70720, 79616, 80860, 84592, 99520, 105740, 129376, 137462, 141440, 161720, 169184, 199040, 211480, 258752, 274924, 282880, 323440, 338368, 343655, 398080, 422960, 517504, 549848, 646880, 676736, 687310, 845920, 1035008, 1099696, 1293760, 1353472, 1374620, 1691840, 2199392, 2587520, 2749240, 3383680, 4398784, 5175040, 5498480, 6767360, 8797568, 10996960, 17595136, 21993920, 43987840, 87975680]

約数ペア:

[(1, 87975680), (2, 43987840), (4, 21993920), (5, 17595136), (8, 10996960), (10, 8797568), (13, 6767360), (16, 5498480), (17, 5175040), (20, 4398784), (26, 3383680), (32, 2749240), (34, 2587520), (40, 2199392), (52, 1691840), (64, 1374620), (65, 1353472), (68, 1293760), (80, 1099696), (85, 1035008), (104, 845920), (128, 687310), (130, 676736), (136, 646880), (160, 549848), (170, 517504), (208, 422960), (221, 398080), (256, 343655), (260, 338368), (272, 323440), (311, 282880), (320, 274924), (340, 258752), (416, 211480), (442, 199040), (520, 169184), (544, 161720), (622, 141440), (640, 137462), (680, 129376), (832, 105740), (884, 99520), (1040, 84592), (1088, 80860), (1105, 79616), (1244, 70720), (1280, 68731), (1360, 64688), (1555, 56576), (1664, 52870), (1768, 49760), (2080, 42296), (2176, 40430), (2210, 39808), (2488, 35360), (2720, 32344), (3110, 28288), (3328, 26435), (3536, 24880), (4043, 21760), (4160, 21148), (4352, 20215), (4420, 19904), (4976, 17680), (5287, 16640), (5440, 16172), (6220, 14144), (7072, 12440), (8086, 10880), (8320, 10574), (8840, 9952)]