20569900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15823}}^1$

素因数の和:15850

約数の個数: 36

約数和(自身を含む): 48073312

約数和(自身を除く): 27503412

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15823, 31646, 63292, 79115, 158230, 205699, 316460, 395575, 411398, 791150, 822796, 1028495, 1582300, 2056990, 4113980, 5142475, 10284950, 20569900]

約数ペア:

[(1, 20569900), (2, 10284950), (4, 5142475), (5, 4113980), (10, 2056990), (13, 1582300), (20, 1028495), (25, 822796), (26, 791150), (50, 411398), (52, 395575), (65, 316460), (100, 205699), (130, 158230), (260, 79115), (325, 63292), (650, 31646), (1300, 15823)]