20181408

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:286

約数の個数: 96

約数和(自身を含む): 57972096

約数和(自身を除く): 37790688

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 103, 104, 156, 157, 206, 208, 309, 312, 314, 412, 416, 471, 618, 624, 628, 824, 942, 1236, 1248, 1256, 1339, 1648, 1884, 2041, 2472, 2512, 2678, 3296, 3768, 4017, 4082, 4944, 5024, 5356, 6123, 7536, 8034, 8164, 9888, 10712, 12246, 15072, 16068, 16171, 16328, 21424, 24492, 32136, 32342, 32656, 42848, 48513, 48984, 64272, 64684, 65312, 97026, 97968, 128544, 129368, 194052, 195936, 210223, 258736, 388104, 420446, 517472, 630669, 776208, 840892, 1261338, 1552416, 1681784, 2522676, 3363568, 5045352, 6727136, 10090704, 20181408]

約数ペア:

[(1, 20181408), (2, 10090704), (3, 6727136), (4, 5045352), (6, 3363568), (8, 2522676), (12, 1681784), (13, 1552416), (16, 1261338), (24, 840892), (26, 776208), (32, 630669), (39, 517472), (48, 420446), (52, 388104), (78, 258736), (96, 210223), (103, 195936), (104, 194052), (156, 129368), (157, 128544), (206, 97968), (208, 97026), (309, 65312), (312, 64684), (314, 64272), (412, 48984), (416, 48513), (471, 42848), (618, 32656), (624, 32342), (628, 32136), (824, 24492), (942, 21424), (1236, 16328), (1248, 16171), (1256, 16068), (1339, 15072), (1648, 12246), (1884, 10712), (2041, 9888), (2472, 8164), (2512, 8034), (2678, 7536), (3296, 6123), (3768, 5356), (4017, 5024), (4082, 4944)]