161645900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{124343}}^1$

素因数の和:124370

約数の個数: 36

約数和(自身を含む): 377757072

約数和(自身を除く): 216111172

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 124343, 248686, 497372, 621715, 1243430, 1616459, 2486860, 3108575, 3232918, 6217150, 6465836, 8082295, 12434300, 16164590, 32329180, 40411475, 80822950, 161645900]

約数ペア:

[(1, 161645900), (2, 80822950), (4, 40411475), (5, 32329180), (10, 16164590), (13, 12434300), (20, 8082295), (25, 6465836), (26, 6217150), (50, 3232918), (52, 3108575), (65, 2486860), (100, 1616459), (130, 1243430), (260, 621715), (325, 497372), (650, 248686), (1300, 124343)]