19711879825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{337}}^1\times {\mathrm{937}}^1$

素因数の和:1522

約数の個数: 48

約数和(自身を含む): 26890403904

約数和(自身を除く): 7178524079

約数列:

[1, 5, 11, 25, 55, 227, 275, 337, 937, 1135, 1685, 2497, 3707, 4685, 5675, 8425, 10307, 12485, 18535, 23425, 51535, 62425, 76499, 92675, 212699, 257675, 315769, 382495, 841489, 1063495, 1578845, 1912475, 2339689, 3473459, 4207445, 5317475, 7894225, 11698445, 17367295, 21037225, 58492225, 71679563, 86836475, 358397815, 788475193, 1791989075, 3942375965, 19711879825]

約数ペア:

[(1, 19711879825), (5, 3942375965), (11, 1791989075), (25, 788475193), (55, 358397815), (227, 86836475), (275, 71679563), (337, 58492225), (937, 21037225), (1135, 17367295), (1685, 11698445), (2497, 7894225), (3707, 5317475), (4685, 4207445), (5675, 3473459), (8425, 2339689), (10307, 1912475), (12485, 1578845), (18535, 1063495), (23425, 841489), (51535, 382495), (62425, 315769), (76499, 257675), (92675, 212699)]