278330678

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1\times {\mathrm{5419}}^1$

素因数の和:5903

約数の個数: 16

約数和(自身を含む): 425426640

約数和(自身を除く): 147095962

約数列:

[1, 2, 61, 122, 421, 842, 5419, 10838, 25681, 51362, 330559, 661118, 2281399, 4562798, 139165339, 278330678]

約数ペア:

[(1, 278330678), (2, 139165339), (61, 4562798), (122, 2281399), (421, 661118), (842, 330559), (5419, 51362), (10838, 25681)]