20857670

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1013}}^1$

素因数の和:1120

約数の個数: 32

約数和(自身を含む): 39424320

約数和(自身を除く): 18566650

約数列:

[1, 2, 5, 10, 29, 58, 71, 142, 145, 290, 355, 710, 1013, 2026, 2059, 4118, 5065, 10130, 10295, 20590, 29377, 58754, 71923, 143846, 146885, 293770, 359615, 719230, 2085767, 4171534, 10428835, 20857670]

約数ペア:

[(1, 20857670), (2, 10428835), (5, 4171534), (10, 2085767), (29, 719230), (58, 359615), (71, 293770), (142, 146885), (145, 143846), (290, 71923), (355, 58754), (710, 29377), (1013, 20590), (2026, 10295), (2059, 10130), (4118, 5065)]