18860724

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 49690368

約数和(自身を除く): 30829644

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 71, 94, 141, 142, 157, 188, 213, 282, 284, 314, 423, 426, 471, 564, 628, 639, 846, 852, 942, 1278, 1413, 1692, 1884, 2556, 2826, 3337, 5652, 6674, 7379, 10011, 11147, 13348, 14758, 20022, 22137, 22294, 29516, 30033, 33441, 40044, 44274, 44588, 60066, 66411, 66882, 88548, 100323, 120132, 132822, 133764, 200646, 265644, 401292, 523909, 1047818, 1571727, 2095636, 3143454, 4715181, 6286908, 9430362, 18860724]

約数ペア:

[(1, 18860724), (2, 9430362), (3, 6286908), (4, 4715181), (6, 3143454), (9, 2095636), (12, 1571727), (18, 1047818), (36, 523909), (47, 401292), (71, 265644), (94, 200646), (141, 133764), (142, 132822), (157, 120132), (188, 100323), (213, 88548), (282, 66882), (284, 66411), (314, 60066), (423, 44588), (426, 44274), (471, 40044), (564, 33441), (628, 30033), (639, 29516), (846, 22294), (852, 22137), (942, 20022), (1278, 14758), (1413, 13348), (1692, 11147), (1884, 10011), (2556, 7379), (2826, 6674), (3337, 5652)]