79104980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{2339}}^1$

素因数の和:2456

約数の個数: 48

約数和(自身を含む): 176904000

約数和(自身を除く): 97799020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 890, 1691, 1780, 2339, 3382, 4678, 6764, 8455, 9356, 11695, 16910, 23390, 33820, 44441, 46780, 88882, 177764, 208171, 222205, 416342, 444410, 832684, 888820, 1040855, 2081710, 3955249, 4163420, 7910498, 15820996, 19776245, 39552490, 79104980]

約数ペア:

[(1, 79104980), (2, 39552490), (4, 19776245), (5, 15820996), (10, 7910498), (19, 4163420), (20, 3955249), (38, 2081710), (76, 1040855), (89, 888820), (95, 832684), (178, 444410), (190, 416342), (356, 222205), (380, 208171), (445, 177764), (890, 88882), (1691, 46780), (1780, 44441), (2339, 33820), (3382, 23390), (4678, 16910), (6764, 11695), (8455, 9356)]