1281250

素因数分解:

$2^1\times 5^6\times {\mathrm{41}}^1$

素因数の和:73

約数の個数: 28

約数和(自身を含む): 2460906

約数和(自身を除く): 1179656

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 125, 205, 250, 410, 625, 1025, 1250, 2050, 3125, 5125, 6250, 10250, 15625, 25625, 31250, 51250, 128125, 256250, 640625, 1281250]

約数ペア:

[(1, 1281250), (2, 640625), (5, 256250), (10, 128125), (25, 51250), (41, 31250), (50, 25625), (82, 15625), (125, 10250), (205, 6250), (250, 5125), (410, 3125), (625, 2050), (1025, 1250)]