42539180

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21059}}^1$

素因数の和:21169

約数の個数: 24

約数和(自身を含む): 90221040

約数和(自身を除く): 47681860

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 21059, 42118, 84236, 105295, 210590, 421180, 2126959, 4253918, 8507836, 10634795, 21269590, 42539180]

約数ペア:

[(1, 42539180), (2, 21269590), (4, 10634795), (5, 8507836), (10, 4253918), (20, 2126959), (101, 421180), (202, 210590), (404, 105295), (505, 84236), (1010, 42118), (2020, 21059)]