18972040

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{8039}}^1$

素因数の和:8109

約数の個数: 32

約数和(自身を含む): 43416000

約数和(自身を除く): 24443960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 8039, 16078, 32156, 40195, 64312, 80390, 160780, 321560, 474301, 948602, 1897204, 2371505, 3794408, 4743010, 9486020, 18972040]

約数ペア:

[(1, 18972040), (2, 9486020), (4, 4743010), (5, 3794408), (8, 2371505), (10, 1897204), (20, 948602), (40, 474301), (59, 321560), (118, 160780), (236, 80390), (295, 64312), (472, 40195), (590, 32156), (1180, 16078), (2360, 8039)]