20187904

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 45033408

約数和(自身を除く): 24845504

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 67, 88, 107, 128, 134, 176, 214, 256, 268, 352, 428, 536, 704, 737, 856, 1072, 1177, 1408, 1474, 1712, 2144, 2354, 2816, 2948, 3424, 4288, 4708, 5896, 6848, 7169, 8576, 9416, 11792, 13696, 14338, 17152, 18832, 23584, 27392, 28676, 37664, 47168, 57352, 75328, 78859, 94336, 114704, 150656, 157718, 188672, 229408, 301312, 315436, 458816, 630872, 917632, 1261744, 1835264, 2523488, 5046976, 10093952, 20187904]

約数ペア:

[(1, 20187904), (2, 10093952), (4, 5046976), (8, 2523488), (11, 1835264), (16, 1261744), (22, 917632), (32, 630872), (44, 458816), (64, 315436), (67, 301312), (88, 229408), (107, 188672), (128, 157718), (134, 150656), (176, 114704), (214, 94336), (256, 78859), (268, 75328), (352, 57352), (428, 47168), (536, 37664), (704, 28676), (737, 27392), (856, 23584), (1072, 18832), (1177, 17152), (1408, 14338), (1474, 13696), (1712, 11792), (2144, 9416), (2354, 8576), (2816, 7169), (2948, 6848), (3424, 5896), (4288, 4708)]