20123745

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{359}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 33488640

約数和(自身を除く): 13364895

約数列:

[1, 3, 5, 15, 37, 101, 111, 185, 303, 359, 505, 555, 1077, 1515, 1795, 3737, 5385, 11211, 13283, 18685, 36259, 39849, 56055, 66415, 108777, 181295, 199245, 543885, 1341583, 4024749, 6707915, 20123745]

約数ペア:

[(1, 20123745), (3, 6707915), (5, 4024749), (15, 1341583), (37, 543885), (101, 199245), (111, 181295), (185, 108777), (303, 66415), (359, 56055), (505, 39849), (555, 36259), (1077, 18685), (1515, 13283), (1795, 11211), (3737, 5385)]