90173408

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^2$

素因数の和:208

約数の個数: 72

約数和(自身を含む): 198425304

約数和(自身を除く): 108251896

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 71, 86, 104, 142, 172, 208, 284, 344, 416, 559, 568, 688, 923, 1118, 1136, 1376, 1846, 2236, 2272, 3053, 3692, 4472, 5041, 6106, 7384, 8944, 10082, 12212, 14768, 17888, 20164, 24424, 29536, 39689, 40328, 48848, 65533, 79378, 80656, 97696, 131066, 158756, 161312, 216763, 262132, 317512, 433526, 524264, 635024, 867052, 1048528, 1270048, 1734104, 2097056, 2817919, 3468208, 5635838, 6936416, 11271676, 22543352, 45086704, 90173408]

約数ペア:

[(1, 90173408), (2, 45086704), (4, 22543352), (8, 11271676), (13, 6936416), (16, 5635838), (26, 3468208), (32, 2817919), (43, 2097056), (52, 1734104), (71, 1270048), (86, 1048528), (104, 867052), (142, 635024), (172, 524264), (208, 433526), (284, 317512), (344, 262132), (416, 216763), (559, 161312), (568, 158756), (688, 131066), (923, 97696), (1118, 80656), (1136, 79378), (1376, 65533), (1846, 48848), (2236, 40328), (2272, 39689), (3053, 29536), (3692, 24424), (4472, 20164), (5041, 17888), (6106, 14768), (7384, 12212), (8944, 10082)]