280149891

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{251707}}^1$

素因数の和:251770

約数の個数: 16

約数和(自身を含む): 434951424

約数和(自身を除く): 154801533

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 251707, 755121, 1761949, 5285847, 13340471, 40021413, 93383297, 280149891]

約数ペア:

[(1, 280149891), (3, 93383297), (7, 40021413), (21, 13340471), (53, 5285847), (159, 1761949), (371, 755121), (1113, 251707)]