239784920

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{34651}}^1$

素因数の和:34835

約数の個数: 32

約数和(自身を含む): 542650320

約数和(自身を除く): 302865400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 34651, 69302, 138604, 173255, 277208, 346510, 693020, 1386040, 5994623, 11989246, 23978492, 29973115, 47956984, 59946230, 119892460, 239784920]

約数ペア:

[(1, 239784920), (2, 119892460), (4, 59946230), (5, 47956984), (8, 29973115), (10, 23978492), (20, 11989246), (40, 5994623), (173, 1386040), (346, 693020), (692, 346510), (865, 277208), (1384, 173255), (1730, 138604), (3460, 69302), (6920, 34651)]