78042860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{557449}}^1$

素因数の和:557465

約数の個数: 24

約数和(自身を含む): 187303200

約数和(自身を除く): 109260340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 557449, 1114898, 2229796, 2787245, 3902143, 5574490, 7804286, 11148980, 15608572, 19510715, 39021430, 78042860]

約数ペア:

[(1, 78042860), (2, 39021430), (4, 19510715), (5, 15608572), (7, 11148980), (10, 7804286), (14, 5574490), (20, 3902143), (28, 2787245), (35, 2229796), (70, 1114898), (140, 557449)]