257966900

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{48673}}^1$

素因数の和:48740

約数の個数: 36

約数和(自身を含む): 570361932

約数和(自身を除く): 312395032

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 212, 265, 530, 1060, 1325, 2650, 5300, 48673, 97346, 194692, 243365, 486730, 973460, 1216825, 2433650, 2579669, 4867300, 5159338, 10318676, 12898345, 25796690, 51593380, 64491725, 128983450, 257966900]

約数ペア:

[(1, 257966900), (2, 128983450), (4, 64491725), (5, 51593380), (10, 25796690), (20, 12898345), (25, 10318676), (50, 5159338), (53, 4867300), (100, 2579669), (106, 2433650), (212, 1216825), (265, 973460), (530, 486730), (1060, 243365), (1325, 194692), (2650, 97346), (5300, 48673)]