128437020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13463}}^1$

素因数の和:13531

約数の個数: 72

約数和(自身を含む): 396972576

約数和(自身を除く): 268535556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2385, 3180, 4770, 9540, 13463, 26926, 40389, 53852, 67315, 80778, 121167, 134630, 161556, 201945, 242334, 269260, 403890, 484668, 605835, 713539, 807780, 1211670, 1427078, 2140617, 2423340, 2854156, 3567695, 4281234, 6421851, 7135390, 8562468, 10703085, 12843702, 14270780, 21406170, 25687404, 32109255, 42812340, 64218510, 128437020]

約数ペア:

[(1, 128437020), (2, 64218510), (3, 42812340), (4, 32109255), (5, 25687404), (6, 21406170), (9, 14270780), (10, 12843702), (12, 10703085), (15, 8562468), (18, 7135390), (20, 6421851), (30, 4281234), (36, 3567695), (45, 2854156), (53, 2423340), (60, 2140617), (90, 1427078), (106, 1211670), (159, 807780), (180, 713539), (212, 605835), (265, 484668), (318, 403890), (477, 269260), (530, 242334), (636, 201945), (795, 161556), (954, 134630), (1060, 121167), (1590, 80778), (1908, 67315), (2385, 53852), (3180, 40389), (4770, 26926), (9540, 13463)]