261217346

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7537}}^1$

素因数の和:7626

約数の個数: 32

約数和(自身を含む): 445767168

約数和(自身を除く): 184549822

約数列:

[1, 2, 13, 26, 31, 43, 62, 86, 403, 559, 806, 1118, 1333, 2666, 7537, 15074, 17329, 34658, 97981, 195962, 233647, 324091, 467294, 648182, 3037411, 4213183, 6074822, 8426366, 10046821, 20093642, 130608673, 261217346]

約数ペア:

[(1, 261217346), (2, 130608673), (13, 20093642), (26, 10046821), (31, 8426366), (43, 6074822), (62, 4213183), (86, 3037411), (403, 648182), (559, 467294), (806, 324091), (1118, 233647), (1333, 195962), (2666, 97981), (7537, 34658), (15074, 17329)]