287691880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1027471}}^1$

素因数の和:1027489

約数の個数: 32

約数和(自身を含む): 739779840

約数和(自身を除く): 452087960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1027471, 2054942, 4109884, 5137355, 7192297, 8219768, 10274710, 14384594, 20549420, 28769188, 35961485, 41098840, 57538376, 71922970, 143845940, 287691880]

約数ペア:

[(1, 287691880), (2, 143845940), (4, 71922970), (5, 57538376), (7, 41098840), (8, 35961485), (10, 28769188), (14, 20549420), (20, 14384594), (28, 10274710), (35, 8219768), (40, 7192297), (56, 5137355), (70, 4109884), (140, 2054942), (280, 1027471)]