12990320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23197}}^1$

素因数の和:23217

約数の個数: 40

約数和(自身を含む): 34518624

約数和(自身を除く): 21528304

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 23197, 46394, 92788, 115985, 162379, 185576, 231970, 324758, 371152, 463940, 649516, 811895, 927880, 1299032, 1623790, 1855760, 2598064, 3247580, 6495160, 12990320]

約数ペア:

[(1, 12990320), (2, 6495160), (4, 3247580), (5, 2598064), (7, 1855760), (8, 1623790), (10, 1299032), (14, 927880), (16, 811895), (20, 649516), (28, 463940), (35, 371152), (40, 324758), (56, 231970), (70, 185576), (80, 162379), (112, 115985), (140, 92788), (280, 46394), (560, 23197)]