251279890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^2$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 490885272

約数和(自身を除く): 239605382

約数列:

[1, 2, 5, 10, 17, 34, 53, 85, 106, 167, 170, 265, 334, 530, 835, 901, 1670, 1802, 2839, 4505, 5678, 8851, 9010, 14195, 17702, 27889, 28390, 44255, 55778, 88510, 139445, 150467, 278890, 300934, 474113, 752335, 948226, 1478117, 1504670, 2370565, 2956234, 4741130, 7390585, 14781170, 25127989, 50255978, 125639945, 251279890]

約数ペア:

[(1, 251279890), (2, 125639945), (5, 50255978), (10, 25127989), (17, 14781170), (34, 7390585), (53, 4741130), (85, 2956234), (106, 2370565), (167, 1504670), (170, 1478117), (265, 948226), (334, 752335), (530, 474113), (835, 300934), (901, 278890), (1670, 150467), (1802, 139445), (2839, 88510), (4505, 55778), (5678, 44255), (8851, 28390), (9010, 27889), (14195, 17702)]