279780876

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{1213}}^1$

素因数の和:1415

約数の個数: 72

約数和(自身を含む): 729128400

約数和(自身を除く): 449347524

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 149, 172, 258, 298, 387, 447, 516, 596, 774, 894, 1213, 1341, 1548, 1788, 2426, 2682, 3639, 4852, 5364, 6407, 7278, 10917, 12814, 14556, 19221, 21834, 25628, 38442, 43668, 52159, 57663, 76884, 104318, 115326, 156477, 180737, 208636, 230652, 312954, 361474, 469431, 542211, 625908, 722948, 938862, 1084422, 1626633, 1877724, 2168844, 3253266, 6506532, 7771691, 15543382, 23315073, 31086764, 46630146, 69945219, 93260292, 139890438, 279780876]

約数ペア:

[(1, 279780876), (2, 139890438), (3, 93260292), (4, 69945219), (6, 46630146), (9, 31086764), (12, 23315073), (18, 15543382), (36, 7771691), (43, 6506532), (86, 3253266), (129, 2168844), (149, 1877724), (172, 1626633), (258, 1084422), (298, 938862), (387, 722948), (447, 625908), (516, 542211), (596, 469431), (774, 361474), (894, 312954), (1213, 230652), (1341, 208636), (1548, 180737), (1788, 156477), (2426, 115326), (2682, 104318), (3639, 76884), (4852, 57663), (5364, 52159), (6407, 43668), (7278, 38442), (10917, 25628), (12814, 21834), (14556, 19221)]