20802510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6247}}^1$

素因数の和:6297

約数の個数: 48

約数和(自身を含む): 55557216

約数和(自身を除く): 34754706

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 37, 45, 74, 90, 111, 185, 222, 333, 370, 555, 666, 1110, 1665, 3330, 6247, 12494, 18741, 31235, 37482, 56223, 62470, 93705, 112446, 187410, 231139, 281115, 462278, 562230, 693417, 1155695, 1386834, 2080251, 2311390, 3467085, 4160502, 6934170, 10401255, 20802510]

約数ペア:

[(1, 20802510), (2, 10401255), (3, 6934170), (5, 4160502), (6, 3467085), (9, 2311390), (10, 2080251), (15, 1386834), (18, 1155695), (30, 693417), (37, 562230), (45, 462278), (74, 281115), (90, 231139), (111, 187410), (185, 112446), (222, 93705), (333, 62470), (370, 56223), (555, 37482), (666, 31235), (1110, 18741), (1665, 12494), (3330, 6247)]