220378545

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{31193}}^1$

素因数の和:31361

約数の個数: 24

約数和(自身を含む): 384434856

約数和(自身を除く): 164056311

約数列:

[1, 3, 5, 9, 15, 45, 157, 471, 785, 1413, 2355, 7065, 31193, 93579, 155965, 280737, 467895, 1403685, 4897301, 14691903, 24486505, 44075709, 73459515, 220378545]

約数ペア:

[(1, 220378545), (3, 73459515), (5, 44075709), (9, 24486505), (15, 14691903), (45, 4897301), (157, 1403685), (471, 467895), (785, 280737), (1413, 155965), (2355, 93579), (7065, 31193)]