20254540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 44279424

約数和(自身を除く): 24024884

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 101, 148, 185, 202, 271, 370, 404, 505, 542, 740, 1010, 1084, 1355, 2020, 2710, 3737, 5420, 7474, 10027, 14948, 18685, 20054, 27371, 37370, 40108, 50135, 54742, 74740, 100270, 109484, 136855, 200540, 273710, 547420, 1012727, 2025454, 4050908, 5063635, 10127270, 20254540]

約数ペア:

[(1, 20254540), (2, 10127270), (4, 5063635), (5, 4050908), (10, 2025454), (20, 1012727), (37, 547420), (74, 273710), (101, 200540), (148, 136855), (185, 109484), (202, 100270), (271, 74740), (370, 54742), (404, 50135), (505, 40108), (542, 37370), (740, 27371), (1010, 20054), (1084, 18685), (1355, 14948), (2020, 10027), (2710, 7474), (3737, 5420)]