212705168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{15263}}^1$

素因数の和:15351

約数の個数: 40

約数和(自身を含む): 450471168

約数和(自身を除く): 237766000

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1742, 3484, 6968, 13936, 15263, 30526, 61052, 122104, 198419, 244208, 396838, 793676, 1022621, 1587352, 2045242, 3174704, 4090484, 8180968, 13294073, 16361936, 26588146, 53176292, 106352584, 212705168]

約数ペア:

[(1, 212705168), (2, 106352584), (4, 53176292), (8, 26588146), (13, 16361936), (16, 13294073), (26, 8180968), (52, 4090484), (67, 3174704), (104, 2045242), (134, 1587352), (208, 1022621), (268, 793676), (536, 396838), (871, 244208), (1072, 198419), (1742, 122104), (3484, 61052), (6968, 30526), (13936, 15263)]