19427990

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:452

約数の個数: 32

約数和(自身を含む): 35956224

約数和(自身を除く): 16528234

約数列:

[1, 2, 5, 10, 67, 107, 134, 214, 271, 335, 535, 542, 670, 1070, 1355, 2710, 7169, 14338, 18157, 28997, 35845, 36314, 57994, 71690, 90785, 144985, 181570, 289970, 1942799, 3885598, 9713995, 19427990]

約数ペア:

[(1, 19427990), (2, 9713995), (5, 3885598), (10, 1942799), (67, 289970), (107, 181570), (134, 144985), (214, 90785), (271, 71690), (335, 57994), (535, 36314), (542, 35845), (670, 28997), (1070, 18157), (1355, 14338), (2710, 7169)]