255827210

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 501621120

約数和(自身を除く): 245793910

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 173, 181, 190, 215, 346, 362, 430, 817, 865, 905, 1634, 1730, 1810, 3287, 3439, 4085, 6574, 6878, 7439, 7783, 8170, 14878, 15566, 16435, 17195, 31313, 32870, 34390, 37195, 38915, 62626, 74390, 77830, 141341, 147877, 156565, 282682, 295754, 313130, 594947, 706705, 739385, 1189894, 1346459, 1413410, 1478770, 2692918, 2974735, 5949470, 6732295, 13464590, 25582721, 51165442, 127913605, 255827210]

約数ペア:

[(1, 255827210), (2, 127913605), (5, 51165442), (10, 25582721), (19, 13464590), (38, 6732295), (43, 5949470), (86, 2974735), (95, 2692918), (173, 1478770), (181, 1413410), (190, 1346459), (215, 1189894), (346, 739385), (362, 706705), (430, 594947), (817, 313130), (865, 295754), (905, 282682), (1634, 156565), (1730, 147877), (1810, 141341), (3287, 77830), (3439, 74390), (4085, 62626), (6574, 38915), (6878, 37195), (7439, 34390), (7783, 32870), (8170, 31313), (14878, 17195), (15566, 16435)]