78014920

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7589}}^1$

素因数の和:7857

約数の個数: 32

約数和(自身を含む): 176239800

約数和(自身を除く): 98224880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 7589, 10280, 15178, 30356, 37945, 60712, 75890, 151780, 303560, 1950373, 3900746, 7801492, 9751865, 15602984, 19503730, 39007460, 78014920]

約数ペア:

[(1, 78014920), (2, 39007460), (4, 19503730), (5, 15602984), (8, 9751865), (10, 7801492), (20, 3900746), (40, 1950373), (257, 303560), (514, 151780), (1028, 75890), (1285, 60712), (2056, 37945), (2570, 30356), (5140, 15178), (7589, 10280)]