27781215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{359}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 28620705

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 67, 77, 105, 165, 201, 231, 335, 359, 385, 469, 737, 1005, 1077, 1155, 1407, 1795, 2211, 2345, 2513, 3685, 3949, 5159, 5385, 7035, 7539, 11055, 11847, 12565, 15477, 19745, 24053, 25795, 27643, 37695, 59235, 72159, 77385, 82929, 120265, 138215, 168371, 264583, 360795, 414645, 505113, 793749, 841855, 1322915, 1852081, 2525565, 3968745, 5556243, 9260405, 27781215]

約数ペア:

[(1, 27781215), (3, 9260405), (5, 5556243), (7, 3968745), (11, 2525565), (15, 1852081), (21, 1322915), (33, 841855), (35, 793749), (55, 505113), (67, 414645), (77, 360795), (105, 264583), (165, 168371), (201, 138215), (231, 120265), (335, 82929), (359, 77385), (385, 72159), (469, 59235), (737, 37695), (1005, 27643), (1077, 25795), (1155, 24053), (1407, 19745), (1795, 15477), (2211, 12565), (2345, 11847), (2513, 11055), (3685, 7539), (3949, 7035), (5159, 5385)]