27681560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{16879}}^1$

素因数の和:16931

約数の個数: 32

約数和(自身を含む): 63806400

約数和(自身を除く): 36124840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 16879, 33758, 67516, 84395, 135032, 168790, 337580, 675160, 692039, 1384078, 2768156, 3460195, 5536312, 6920390, 13840780, 27681560]

約数ペア:

[(1, 27681560), (2, 13840780), (4, 6920390), (5, 5536312), (8, 3460195), (10, 2768156), (20, 1384078), (40, 692039), (41, 675160), (82, 337580), (164, 168790), (205, 135032), (328, 84395), (410, 67516), (820, 33758), (1640, 16879)]