20149948

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{281}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 43775424

約数和(自身を除く): 23625476

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 197, 281, 364, 394, 562, 788, 1124, 1379, 1967, 2561, 2758, 3653, 3934, 5122, 5516, 7306, 7868, 10244, 14612, 17927, 25571, 35854, 51142, 55357, 71708, 102284, 110714, 221428, 387499, 719641, 774998, 1439282, 1549996, 2878564, 5037487, 10074974, 20149948]

約数ペア:

[(1, 20149948), (2, 10074974), (4, 5037487), (7, 2878564), (13, 1549996), (14, 1439282), (26, 774998), (28, 719641), (52, 387499), (91, 221428), (182, 110714), (197, 102284), (281, 71708), (364, 55357), (394, 51142), (562, 35854), (788, 25571), (1124, 17927), (1379, 14612), (1967, 10244), (2561, 7868), (2758, 7306), (3653, 5516), (3934, 5122)]