257851020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{1531}}^1$

素因数の和:1951

約数の個数: 96

約数和(自身を含む): 827721216

約数和(自身を除く): 569870196

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 401, 420, 802, 1203, 1531, 1604, 2005, 2406, 2807, 3062, 4010, 4593, 4812, 5614, 6015, 6124, 7655, 8020, 8421, 9186, 10717, 11228, 12030, 14035, 15310, 16842, 18372, 21434, 22965, 24060, 28070, 30620, 32151, 33684, 42105, 42868, 45930, 53585, 56140, 64302, 84210, 91860, 107170, 128604, 160755, 168420, 214340, 321510, 613931, 643020, 1227862, 1841793, 2455724, 3069655, 3683586, 4297517, 6139310, 7367172, 8595034, 9208965, 12278620, 12892551, 17190068, 18417930, 21487585, 25785102, 36835860, 42975170, 51570204, 64462755, 85950340, 128925510, 257851020]

約数ペア:

[(1, 257851020), (2, 128925510), (3, 85950340), (4, 64462755), (5, 51570204), (6, 42975170), (7, 36835860), (10, 25785102), (12, 21487585), (14, 18417930), (15, 17190068), (20, 12892551), (21, 12278620), (28, 9208965), (30, 8595034), (35, 7367172), (42, 6139310), (60, 4297517), (70, 3683586), (84, 3069655), (105, 2455724), (140, 1841793), (210, 1227862), (401, 643020), (420, 613931), (802, 321510), (1203, 214340), (1531, 168420), (1604, 160755), (2005, 128604), (2406, 107170), (2807, 91860), (3062, 84210), (4010, 64302), (4593, 56140), (4812, 53585), (5614, 45930), (6015, 42868), (6124, 42105), (7655, 33684), (8020, 32151), (8421, 30620), (9186, 28070), (10717, 24060), (11228, 22965), (12030, 21434), (14035, 18372), (15310, 16842)]