29998340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{887}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 67132800

約数和(自身を除く): 37134460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 887, 890, 1691, 1774, 1780, 3382, 3548, 4435, 6764, 8455, 8870, 16853, 16910, 17740, 33706, 33820, 67412, 78943, 84265, 157886, 168530, 315772, 337060, 394715, 789430, 1499917, 1578860, 2999834, 5999668, 7499585, 14999170, 29998340]

約数ペア:

[(1, 29998340), (2, 14999170), (4, 7499585), (5, 5999668), (10, 2999834), (19, 1578860), (20, 1499917), (38, 789430), (76, 394715), (89, 337060), (95, 315772), (178, 168530), (190, 157886), (356, 84265), (380, 78943), (445, 67412), (887, 33820), (890, 33706), (1691, 17740), (1774, 16910), (1780, 16853), (3382, 8870), (3548, 8455), (4435, 6764)]