56997980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{219223}}^1$

素因数の和:219245

約数の個数: 24

約数和(自身を含む): 128903712

約数和(自身を除く): 71905732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 219223, 438446, 876892, 1096115, 2192230, 2849899, 4384460, 5699798, 11399596, 14249495, 28498990, 56997980]

約数ペア:

[(1, 56997980), (2, 28498990), (4, 14249495), (5, 11399596), (10, 5699798), (13, 4384460), (20, 2849899), (26, 2192230), (52, 1096115), (65, 876892), (130, 438446), (260, 219223)]