641730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{21391}}^1$

素因数の和:21401

約数の個数: 16

約数和(自身を含む): 1540224

約数和(自身を除く): 898494

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 21391, 42782, 64173, 106955, 128346, 213910, 320865, 641730]

約数ペア:

[(1, 641730), (2, 320865), (3, 213910), (5, 128346), (6, 106955), (10, 64173), (15, 42782), (30, 21391)]