311146240

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:298

約数の個数: 144

約数和(自身を含む): 803537280

約数和(自身を除く): 492391040

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 79, 80, 85, 128, 136, 158, 160, 170, 181, 256, 272, 316, 320, 340, 362, 395, 544, 632, 640, 680, 724, 790, 905, 1088, 1264, 1280, 1343, 1360, 1448, 1580, 1810, 2176, 2528, 2686, 2720, 2896, 3077, 3160, 3620, 4352, 5056, 5372, 5440, 5792, 6154, 6320, 6715, 7240, 10112, 10744, 10880, 11584, 12308, 12640, 13430, 14299, 14480, 15385, 20224, 21488, 21760, 23168, 24616, 25280, 26860, 28598, 28960, 30770, 42976, 46336, 49232, 50560, 53720, 57196, 57920, 61540, 71495, 85952, 98464, 101120, 107440, 114392, 115840, 123080, 142990, 171904, 196928, 214880, 228784, 231680, 243083, 246160, 285980, 343808, 393856, 429760, 457568, 486166, 492320, 571960, 787712, 859520, 915136, 972332, 984640, 1143920, 1215415, 1719040, 1830272, 1944664, 1969280, 2287840, 2430830, 3660544, 3889328, 3938560, 4575680, 4861660, 7778656, 9151360, 9723320, 15557312, 18302720, 19446640, 31114624, 38893280, 62229248, 77786560, 155573120, 311146240]

約数ペア:

[(1, 311146240), (2, 155573120), (4, 77786560), (5, 62229248), (8, 38893280), (10, 31114624), (16, 19446640), (17, 18302720), (20, 15557312), (32, 9723320), (34, 9151360), (40, 7778656), (64, 4861660), (68, 4575680), (79, 3938560), (80, 3889328), (85, 3660544), (128, 2430830), (136, 2287840), (158, 1969280), (160, 1944664), (170, 1830272), (181, 1719040), (256, 1215415), (272, 1143920), (316, 984640), (320, 972332), (340, 915136), (362, 859520), (395, 787712), (544, 571960), (632, 492320), (640, 486166), (680, 457568), (724, 429760), (790, 393856), (905, 343808), (1088, 285980), (1264, 246160), (1280, 243083), (1343, 231680), (1360, 228784), (1448, 214880), (1580, 196928), (1810, 171904), (2176, 142990), (2528, 123080), (2686, 115840), (2720, 114392), (2896, 107440), (3077, 101120), (3160, 98464), (3620, 85952), (4352, 71495), (5056, 61540), (5372, 57920), (5440, 57196), (5792, 53720), (6154, 50560), (6320, 49232), (6715, 46336), (7240, 42976), (10112, 30770), (10744, 28960), (10880, 28598), (11584, 26860), (12308, 25280), (12640, 24616), (13430, 23168), (14299, 21760), (14480, 21488), (15385, 20224)]