280565375

素因数分解:

$5^3\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{313}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 359738496

約数和(自身を除く): 79173121

約数列:

[1, 5, 25, 71, 101, 125, 313, 355, 505, 1565, 1775, 2525, 7171, 7825, 8875, 12625, 22223, 31613, 35855, 39125, 111115, 158065, 179275, 555575, 790325, 896375, 2244523, 2777875, 3951625, 11222615, 56113075, 280565375]

約数ペア:

[(1, 280565375), (5, 56113075), (25, 11222615), (71, 3951625), (101, 2777875), (125, 2244523), (313, 896375), (355, 790325), (505, 555575), (1565, 179275), (1775, 158065), (2525, 111115), (7171, 39125), (7825, 35855), (8875, 31613), (12625, 22223)]