18581990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1483}}^1$

素因数の和:1676

約数の個数: 32

約数和(自身を含む): 38465280

約数和(自身を除く): 19883290

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 179, 358, 895, 1253, 1483, 1790, 2506, 2966, 6265, 7415, 10381, 12530, 14830, 20762, 51905, 103810, 265457, 530914, 1327285, 1858199, 2654570, 3716398, 9290995, 18581990]

約数ペア:

[(1, 18581990), (2, 9290995), (5, 3716398), (7, 2654570), (10, 1858199), (14, 1327285), (35, 530914), (70, 265457), (179, 103810), (358, 51905), (895, 20762), (1253, 14830), (1483, 12530), (1790, 10381), (2506, 7415), (2966, 6265)]