31000900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:749

約数の個数: 72

約数和(自身を含む): 78147776

約数和(自身を除く): 47146876

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 67, 70, 100, 134, 140, 175, 268, 335, 350, 469, 661, 670, 700, 938, 1322, 1340, 1675, 1876, 2345, 2644, 3305, 3350, 4627, 4690, 6610, 6700, 9254, 9380, 11725, 13220, 16525, 18508, 23135, 23450, 33050, 44287, 46270, 46900, 66100, 88574, 92540, 115675, 177148, 221435, 231350, 310009, 442870, 462700, 620018, 885740, 1107175, 1240036, 1550045, 2214350, 3100090, 4428700, 6200180, 7750225, 15500450, 31000900]

約数ペア:

[(1, 31000900), (2, 15500450), (4, 7750225), (5, 6200180), (7, 4428700), (10, 3100090), (14, 2214350), (20, 1550045), (25, 1240036), (28, 1107175), (35, 885740), (50, 620018), (67, 462700), (70, 442870), (100, 310009), (134, 231350), (140, 221435), (175, 177148), (268, 115675), (335, 92540), (350, 88574), (469, 66100), (661, 46900), (670, 46270), (700, 44287), (938, 33050), (1322, 23450), (1340, 23135), (1675, 18508), (1876, 16525), (2345, 13220), (2644, 11725), (3305, 9380), (3350, 9254), (4627, 6700), (4690, 6610)]