81512336

素因数分解:

$2^4\times {\mathrm{421}}^1\times {\mathrm{12101}}^1$

素因数の和:12530

約数の個数: 20

約数和(自身を含む): 158318364

約数和(自身を除く): 76806028

約数列:

[1, 2, 4, 8, 16, 421, 842, 1684, 3368, 6736, 12101, 24202, 48404, 96808, 193616, 5094521, 10189042, 20378084, 40756168, 81512336]

約数ペア:

[(1, 81512336), (2, 40756168), (4, 20378084), (8, 10189042), (16, 5094521), (421, 193616), (842, 96808), (1684, 48404), (3368, 24202), (6736, 12101)]