1639776725

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{9011}}^1$

素因数の和:9301

約数の個数: 24

約数和(自身を含む): 2112052320

約数和(自身を除く): 472275595

約数列:

[1, 5, 25, 29, 145, 251, 725, 1255, 6275, 7279, 9011, 36395, 45055, 181975, 225275, 261319, 1306595, 2261761, 6532975, 11308805, 56544025, 65591069, 327955345, 1639776725]

約数ペア:

[(1, 1639776725), (5, 327955345), (25, 65591069), (29, 56544025), (145, 11308805), (251, 6532975), (725, 2261761), (1255, 1306595), (6275, 261319), (7279, 225275), (9011, 181975), (36395, 45055)]