12897440

素因数分解:

$2^5\times 5^1\times {\mathrm{149}}^1\times {\mathrm{541}}^1$

素因数の和:705

約数の個数: 48

約数和(自身を含む): 30731400

約数和(自身を除く): 17833960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 149, 160, 298, 541, 596, 745, 1082, 1192, 1490, 2164, 2384, 2705, 2980, 4328, 4768, 5410, 5960, 8656, 10820, 11920, 17312, 21640, 23840, 43280, 80609, 86560, 161218, 322436, 403045, 644872, 806090, 1289744, 1612180, 2579488, 3224360, 6448720, 12897440]

約数ペア:

[(1, 12897440), (2, 6448720), (4, 3224360), (5, 2579488), (8, 1612180), (10, 1289744), (16, 806090), (20, 644872), (32, 403045), (40, 322436), (80, 161218), (149, 86560), (160, 80609), (298, 43280), (541, 23840), (596, 21640), (745, 17312), (1082, 11920), (1192, 10820), (1490, 8656), (2164, 5960), (2384, 5410), (2705, 4768), (2980, 4328)]