20171904

素因数分解:

$2^7\times 3^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:549

約数の個数: 64

約数和(自身を含む): 54125280

約数和(自身を除く): 33953376

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 131, 192, 262, 384, 393, 401, 524, 786, 802, 1048, 1203, 1572, 1604, 2096, 2406, 3144, 3208, 4192, 4812, 6288, 6416, 8384, 9624, 12576, 12832, 16768, 19248, 25152, 25664, 38496, 50304, 51328, 52531, 76992, 105062, 153984, 157593, 210124, 315186, 420248, 630372, 840496, 1260744, 1680992, 2521488, 3361984, 5042976, 6723968, 10085952, 20171904]

約数ペア:

[(1, 20171904), (2, 10085952), (3, 6723968), (4, 5042976), (6, 3361984), (8, 2521488), (12, 1680992), (16, 1260744), (24, 840496), (32, 630372), (48, 420248), (64, 315186), (96, 210124), (128, 157593), (131, 153984), (192, 105062), (262, 76992), (384, 52531), (393, 51328), (401, 50304), (524, 38496), (786, 25664), (802, 25152), (1048, 19248), (1203, 16768), (1572, 12832), (1604, 12576), (2096, 9624), (2406, 8384), (3144, 6416), (3208, 6288), (4192, 4812)]