285770360

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{117119}}^1$

素因数の和:117191

約数の個数: 32

約数和(自身を含む): 653529600

約数和(自身を除く): 367759240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 117119, 234238, 468476, 585595, 936952, 1171190, 2342380, 4684760, 7144259, 14288518, 28577036, 35721295, 57154072, 71442590, 142885180, 285770360]

約数ペア:

[(1, 285770360), (2, 142885180), (4, 71442590), (5, 57154072), (8, 35721295), (10, 28577036), (20, 14288518), (40, 7144259), (61, 4684760), (122, 2342380), (244, 1171190), (305, 936952), (488, 585595), (610, 468476), (1220, 234238), (2440, 117119)]