257458890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1$

素因数の和:316

約数の個数: 128

約数和(自身を含む): 690923520

約数和(自身を除く): 433464630

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 59, 65, 67, 78, 118, 130, 134, 167, 177, 195, 201, 295, 334, 335, 354, 390, 402, 501, 590, 670, 767, 835, 871, 885, 1002, 1005, 1534, 1670, 1742, 1770, 2010, 2171, 2301, 2505, 2613, 3835, 3953, 4342, 4355, 4602, 5010, 5226, 6513, 7670, 7906, 8710, 9853, 10855, 11189, 11505, 11859, 13026, 13065, 19706, 19765, 21710, 22378, 23010, 23718, 26130, 29559, 32565, 33567, 39530, 49265, 51389, 55945, 59118, 59295, 65130, 67134, 98530, 102778, 111890, 118590, 128089, 145457, 147795, 154167, 167835, 256178, 256945, 290914, 295590, 308334, 335670, 384267, 436371, 513890, 640445, 660151, 727285, 768534, 770835, 872742, 1280890, 1320302, 1454570, 1541670, 1921335, 1980453, 2181855, 3300755, 3842670, 3960906, 4363710, 6601510, 8581963, 9902265, 17163926, 19804530, 25745889, 42909815, 51491778, 85819630, 128729445, 257458890]

約数ペア:

[(1, 257458890), (2, 128729445), (3, 85819630), (5, 51491778), (6, 42909815), (10, 25745889), (13, 19804530), (15, 17163926), (26, 9902265), (30, 8581963), (39, 6601510), (59, 4363710), (65, 3960906), (67, 3842670), (78, 3300755), (118, 2181855), (130, 1980453), (134, 1921335), (167, 1541670), (177, 1454570), (195, 1320302), (201, 1280890), (295, 872742), (334, 770835), (335, 768534), (354, 727285), (390, 660151), (402, 640445), (501, 513890), (590, 436371), (670, 384267), (767, 335670), (835, 308334), (871, 295590), (885, 290914), (1002, 256945), (1005, 256178), (1534, 167835), (1670, 154167), (1742, 147795), (1770, 145457), (2010, 128089), (2171, 118590), (2301, 111890), (2505, 102778), (2613, 98530), (3835, 67134), (3953, 65130), (4342, 59295), (4355, 59118), (4602, 55945), (5010, 51389), (5226, 49265), (6513, 39530), (7670, 33567), (7906, 32565), (8710, 29559), (9853, 26130), (10855, 23718), (11189, 23010), (11505, 22378), (11859, 21710), (13026, 19765), (13065, 19706)]