81739330

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{6421}}^1$

素因数の和:6514

約数の個数: 32

約数和(自身を含む): 157210560

約数和(自身を除く): 75471230

約数列:

[1, 2, 5, 10, 19, 38, 67, 95, 134, 190, 335, 670, 1273, 2546, 6365, 6421, 12730, 12842, 32105, 64210, 121999, 243998, 430207, 609995, 860414, 1219990, 2151035, 4302070, 8173933, 16347866, 40869665, 81739330]

約数ペア:

[(1, 81739330), (2, 40869665), (5, 16347866), (10, 8173933), (19, 4302070), (38, 2151035), (67, 1219990), (95, 860414), (134, 609995), (190, 430207), (335, 243998), (670, 121999), (1273, 64210), (2546, 32105), (6365, 12842), (6421, 12730)]