155017040

素因数分解:

$2^4\times 5^1\times {\mathrm{1937713}}^1$

素因数の和:1937726

約数の個数: 20

約数和(自身を含む): 360414804

約数和(自身を除く): 205397764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1937713, 3875426, 7750852, 9688565, 15501704, 19377130, 31003408, 38754260, 77508520, 155017040]

約数ペア:

[(1, 155017040), (2, 77508520), (4, 38754260), (5, 31003408), (8, 19377130), (10, 15501704), (16, 9688565), (20, 7750852), (40, 3875426), (80, 1937713)]