78844880

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{2341}}^1$

素因数の和:2775

約数の個数: 40

約数和(自身を含む): 183828264

約数和(自身を除く): 104983384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 842, 1684, 2105, 2341, 3368, 4210, 4682, 6736, 8420, 9364, 11705, 16840, 18728, 23410, 33680, 37456, 46820, 93640, 187280, 985561, 1971122, 3942244, 4927805, 7884488, 9855610, 15768976, 19711220, 39422440, 78844880]

約数ペア:

[(1, 78844880), (2, 39422440), (4, 19711220), (5, 15768976), (8, 9855610), (10, 7884488), (16, 4927805), (20, 3942244), (40, 1971122), (80, 985561), (421, 187280), (842, 93640), (1684, 46820), (2105, 37456), (2341, 33680), (3368, 23410), (4210, 18728), (4682, 16840), (6736, 11705), (8420, 9364)]