55985540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{215329}}^1$

素因数の和:215351

約数の個数: 24

約数和(自身を含む): 126614040

約数和(自身を除く): 70628500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 215329, 430658, 861316, 1076645, 2153290, 2799277, 4306580, 5598554, 11197108, 13996385, 27992770, 55985540]

約数ペア:

[(1, 55985540), (2, 27992770), (4, 13996385), (5, 11197108), (10, 5598554), (13, 4306580), (20, 2799277), (26, 2153290), (52, 1076645), (65, 861316), (130, 430658), (260, 215329)]