253863995

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{28669}}^1$

素因数の和:28715

約数の個数: 32

約数和(自身を含む): 396334080

約数和(自身を除く): 142470085

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 161, 253, 385, 805, 1265, 1771, 8855, 28669, 143345, 200683, 315359, 659387, 1003415, 1576795, 2207513, 3296935, 4615709, 7253257, 11037565, 23078545, 36266285, 50772799, 253863995]

約数ペア:

[(1, 253863995), (5, 50772799), (7, 36266285), (11, 23078545), (23, 11037565), (35, 7253257), (55, 4615709), (77, 3296935), (115, 2207513), (161, 1576795), (253, 1003415), (385, 659387), (805, 315359), (1265, 200683), (1771, 143345), (8855, 28669)]