20596090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:175

約数の個数: 48

約数和(自身を含む): 40135680

約数和(自身を除く): 19539590

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 79, 145, 155, 158, 290, 310, 395, 790, 841, 899, 1682, 1798, 2291, 2449, 4205, 4495, 4582, 4898, 8410, 8990, 11455, 12245, 22910, 24490, 26071, 52142, 66439, 71021, 130355, 132878, 142042, 260710, 332195, 355105, 664390, 710210, 2059609, 4119218, 10298045, 20596090]

約数ペア:

[(1, 20596090), (2, 10298045), (5, 4119218), (10, 2059609), (29, 710210), (31, 664390), (58, 355105), (62, 332195), (79, 260710), (145, 142042), (155, 132878), (158, 130355), (290, 71021), (310, 66439), (395, 52142), (790, 26071), (841, 24490), (899, 22910), (1682, 12245), (1798, 11455), (2291, 8990), (2449, 8410), (4205, 4898), (4495, 4582)]