26140780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 57153600

約数和(自身を除く): 31012820

約数列:

[1, 2, 4, 5, 10, 20, 41, 71, 82, 142, 164, 205, 284, 355, 410, 449, 710, 820, 898, 1420, 1796, 2245, 2911, 4490, 5822, 8980, 11644, 14555, 18409, 29110, 31879, 36818, 58220, 63758, 73636, 92045, 127516, 159395, 184090, 318790, 368180, 637580, 1307039, 2614078, 5228156, 6535195, 13070390, 26140780]

約数ペア:

[(1, 26140780), (2, 13070390), (4, 6535195), (5, 5228156), (10, 2614078), (20, 1307039), (41, 637580), (71, 368180), (82, 318790), (142, 184090), (164, 159395), (205, 127516), (284, 92045), (355, 73636), (410, 63758), (449, 58220), (710, 36818), (820, 31879), (898, 29110), (1420, 18409), (1796, 14555), (2245, 11644), (2911, 8980), (4490, 5822)]