66992360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{40849}}^1$

素因数の和:40901

約数の個数: 32

約数和(自身を含む): 154413000

約数和(自身を除く): 87420640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 40849, 81698, 163396, 204245, 326792, 408490, 816980, 1633960, 1674809, 3349618, 6699236, 8374045, 13398472, 16748090, 33496180, 66992360]

約数ペア:

[(1, 66992360), (2, 33496180), (4, 16748090), (5, 13398472), (8, 8374045), (10, 6699236), (20, 3349618), (40, 1674809), (41, 1633960), (82, 816980), (164, 408490), (205, 326792), (328, 204245), (410, 163396), (820, 81698), (1640, 40849)]