20694528

素因数分解:

$2^9\times 3^4\times {\mathrm{499}}^1$

素因数の和:529

約数の個数: 100

約数和(自身を含む): 61891500

約数和(自身を除く): 41196972

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 256, 288, 324, 384, 432, 499, 512, 576, 648, 768, 864, 998, 1152, 1296, 1497, 1536, 1728, 1996, 2304, 2592, 2994, 3456, 3992, 4491, 4608, 5184, 5988, 6912, 7984, 8982, 10368, 11976, 13473, 13824, 15968, 17964, 20736, 23952, 26946, 31936, 35928, 40419, 41472, 47904, 53892, 63872, 71856, 80838, 95808, 107784, 127744, 143712, 161676, 191616, 215568, 255488, 287424, 323352, 383232, 431136, 574848, 646704, 766464, 862272, 1149696, 1293408, 1724544, 2299392, 2586816, 3449088, 5173632, 6898176, 10347264, 20694528]

約数ペア:

[(1, 20694528), (2, 10347264), (3, 6898176), (4, 5173632), (6, 3449088), (8, 2586816), (9, 2299392), (12, 1724544), (16, 1293408), (18, 1149696), (24, 862272), (27, 766464), (32, 646704), (36, 574848), (48, 431136), (54, 383232), (64, 323352), (72, 287424), (81, 255488), (96, 215568), (108, 191616), (128, 161676), (144, 143712), (162, 127744), (192, 107784), (216, 95808), (256, 80838), (288, 71856), (324, 63872), (384, 53892), (432, 47904), (499, 41472), (512, 40419), (576, 35928), (648, 31936), (768, 26946), (864, 23952), (998, 20736), (1152, 17964), (1296, 15968), (1497, 13824), (1536, 13473), (1728, 11976), (1996, 10368), (2304, 8982), (2592, 7984), (2994, 6912), (3456, 5988), (3992, 5184), (4491, 4608)]