19614660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25147}}^1$

素因数の和:25172

約数の個数: 48

約数和(自身を含む): 59148096

約数和(自身を除く): 39533436

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25147, 50294, 75441, 100588, 125735, 150882, 251470, 301764, 326911, 377205, 502940, 653822, 754410, 980733, 1307644, 1508820, 1634555, 1961466, 3269110, 3922932, 4903665, 6538220, 9807330, 19614660]

約数ペア:

[(1, 19614660), (2, 9807330), (3, 6538220), (4, 4903665), (5, 3922932), (6, 3269110), (10, 1961466), (12, 1634555), (13, 1508820), (15, 1307644), (20, 980733), (26, 754410), (30, 653822), (39, 502940), (52, 377205), (60, 326911), (65, 301764), (78, 251470), (130, 150882), (156, 125735), (195, 100588), (260, 75441), (390, 50294), (780, 25147)]