82646820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19963}}^1$

素因数の和:20001

約数の個数: 72

約数和(自身を含む): 261608256

約数和(自身を除く): 178961436

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 19963, 39926, 59889, 79852, 99815, 119778, 179667, 199630, 239556, 299445, 359334, 399260, 459149, 598890, 718668, 898335, 918298, 1197780, 1377447, 1796670, 1836596, 2295745, 2754894, 3593340, 4132341, 4591490, 5509788, 6887235, 8264682, 9182980, 13774470, 16529364, 20661705, 27548940, 41323410, 82646820]

約数ペア:

[(1, 82646820), (2, 41323410), (3, 27548940), (4, 20661705), (5, 16529364), (6, 13774470), (9, 9182980), (10, 8264682), (12, 6887235), (15, 5509788), (18, 4591490), (20, 4132341), (23, 3593340), (30, 2754894), (36, 2295745), (45, 1836596), (46, 1796670), (60, 1377447), (69, 1197780), (90, 918298), (92, 898335), (115, 718668), (138, 598890), (180, 459149), (207, 399260), (230, 359334), (276, 299445), (345, 239556), (414, 199630), (460, 179667), (690, 119778), (828, 99815), (1035, 79852), (1380, 59889), (2070, 39926), (4140, 19963)]