349291240

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{16141}}^1$

素因数の和:16693

約数の個数: 32

約数和(自身を含む): 787406760

約数和(自身を除く): 438115520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 1082, 2164, 2705, 4328, 5410, 10820, 16141, 21640, 32282, 64564, 80705, 129128, 161410, 322820, 645640, 8732281, 17464562, 34929124, 43661405, 69858248, 87322810, 174645620, 349291240]

約数ペア:

[(1, 349291240), (2, 174645620), (4, 87322810), (5, 69858248), (8, 43661405), (10, 34929124), (20, 17464562), (40, 8732281), (541, 645640), (1082, 322820), (2164, 161410), (2705, 129128), (4328, 80705), (5410, 64564), (10820, 32282), (16141, 21640)]