399778862

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1\times {\mathrm{2243}}^1$

素因数の和:2720

約数の個数: 32

約数和(自身を含む): 710899200

約数和(自身を除く): 311120338

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 439, 878, 2243, 3073, 4486, 6146, 12731, 15701, 25462, 31402, 65047, 89117, 130094, 178234, 455329, 910658, 984677, 1969354, 6892739, 13785478, 28555633, 57111266, 199889431, 399778862]

約数ペア:

[(1, 399778862), (2, 199889431), (7, 57111266), (14, 28555633), (29, 13785478), (58, 6892739), (203, 1969354), (406, 984677), (439, 910658), (878, 455329), (2243, 178234), (3073, 130094), (4486, 89117), (6146, 65047), (12731, 31402), (15701, 25462)]