83997880

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{8171}}^1$

素因数の和:8439

約数の個数: 32

約数和(自身を含む): 189753840

約数和(自身を除く): 105755960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 8171, 10280, 16342, 32684, 40855, 65368, 81710, 163420, 326840, 2099947, 4199894, 8399788, 10499735, 16799576, 20999470, 41998940, 83997880]

約数ペア:

[(1, 83997880), (2, 41998940), (4, 20999470), (5, 16799576), (8, 10499735), (10, 8399788), (20, 4199894), (40, 2099947), (257, 326840), (514, 163420), (1028, 81710), (1285, 65368), (2056, 40855), (2570, 32684), (5140, 16342), (8171, 10280)]