278345559

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{379}}^1$

素因数の和:615

約数の個数: 32

約数和(自身を含む): 393984000

約数和(自身を除く): 115638441

約数列:

[1, 3, 31, 53, 93, 149, 159, 379, 447, 1137, 1643, 4619, 4929, 7897, 11749, 13857, 20087, 23691, 35247, 56471, 60261, 169413, 244807, 622697, 734421, 1750601, 1868091, 2992963, 5251803, 8978889, 92781853, 278345559]

約数ペア:

[(1, 278345559), (3, 92781853), (31, 8978889), (53, 5251803), (93, 2992963), (149, 1868091), (159, 1750601), (379, 734421), (447, 622697), (1137, 244807), (1643, 169413), (4619, 60261), (4929, 56471), (7897, 35247), (11749, 23691), (13857, 20087)]