1279783888

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{373}}^1\times {\mathrm{4987}}^1$

素因数の和:5411

約数の個数: 40

約数和(自身を含む): 2544558368

約数和(自身を除く): 1264774480

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 373, 688, 746, 1492, 2984, 4987, 5968, 9974, 16039, 19948, 32078, 39896, 64156, 79792, 128312, 214441, 256624, 428882, 857764, 1715528, 1860151, 3431056, 3720302, 7440604, 14881208, 29762416, 79986493, 159972986, 319945972, 639891944, 1279783888]

約数ペア:

[(1, 1279783888), (2, 639891944), (4, 319945972), (8, 159972986), (16, 79986493), (43, 29762416), (86, 14881208), (172, 7440604), (344, 3720302), (373, 3431056), (688, 1860151), (746, 1715528), (1492, 857764), (2984, 428882), (4987, 256624), (5968, 214441), (9974, 128312), (16039, 79792), (19948, 64156), (32078, 39896)]