79489280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1$

素因数の和:332

約数の個数: 144

約数和(自身を含む): 217882224

約数和(自身を除く): 138392944

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, 281, 320, 340, 416, 442, 520, 544, 562, 640, 680, 832, 884, 1040, 1088, 1105, 1124, 1280, 1360, 1405, 1664, 1768, 2080, 2176, 2210, 2248, 2720, 2810, 3328, 3536, 3653, 4160, 4352, 4420, 4496, 4777, 5440, 5620, 7072, 7306, 8320, 8840, 8992, 9554, 10880, 11240, 14144, 14612, 16640, 17680, 17984, 18265, 19108, 21760, 22480, 23885, 28288, 29224, 35360, 35968, 36530, 38216, 44960, 47770, 56576, 58448, 62101, 70720, 71936, 73060, 76432, 89920, 95540, 116896, 124202, 141440, 146120, 152864, 179840, 191080, 233792, 248404, 282880, 292240, 305728, 310505, 359680, 382160, 467584, 496808, 584480, 611456, 621010, 764320, 935168, 993616, 1168960, 1222912, 1242020, 1528640, 1987232, 2337920, 2484040, 3057280, 3974464, 4675840, 4968080, 6114560, 7948928, 9936160, 15897856, 19872320, 39744640, 79489280]

約数ペア:

[(1, 79489280), (2, 39744640), (4, 19872320), (5, 15897856), (8, 9936160), (10, 7948928), (13, 6114560), (16, 4968080), (17, 4675840), (20, 3974464), (26, 3057280), (32, 2484040), (34, 2337920), (40, 1987232), (52, 1528640), (64, 1242020), (65, 1222912), (68, 1168960), (80, 993616), (85, 935168), (104, 764320), (128, 621010), (130, 611456), (136, 584480), (160, 496808), (170, 467584), (208, 382160), (221, 359680), (256, 310505), (260, 305728), (272, 292240), (281, 282880), (320, 248404), (340, 233792), (416, 191080), (442, 179840), (520, 152864), (544, 146120), (562, 141440), (640, 124202), (680, 116896), (832, 95540), (884, 89920), (1040, 76432), (1088, 73060), (1105, 71936), (1124, 70720), (1280, 62101), (1360, 58448), (1405, 56576), (1664, 47770), (1768, 44960), (2080, 38216), (2176, 36530), (2210, 35968), (2248, 35360), (2720, 29224), (2810, 28288), (3328, 23885), (3536, 22480), (3653, 21760), (4160, 19108), (4352, 18265), (4420, 17984), (4496, 17680), (4777, 16640), (5440, 14612), (5620, 14144), (7072, 11240), (7306, 10880), (8320, 9554), (8840, 8992)]