25280560

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7349}}^1$

素因数の和:7405

約数の個数: 40

約数和(自身を含む): 60152400

約数和(自身を除く): 34871840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 7349, 14698, 29396, 36745, 58792, 73490, 117584, 146980, 293960, 316007, 587920, 632014, 1264028, 1580035, 2528056, 3160070, 5056112, 6320140, 12640280, 25280560]

約数ペア:

[(1, 25280560), (2, 12640280), (4, 6320140), (5, 5056112), (8, 3160070), (10, 2528056), (16, 1580035), (20, 1264028), (40, 632014), (43, 587920), (80, 316007), (86, 293960), (172, 146980), (215, 117584), (344, 73490), (430, 58792), (688, 36745), (860, 29396), (1720, 14698), (3440, 7349)]