19505660

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{613}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 43117536

約数和(自身を除く): 23611876

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 74, 86, 148, 172, 185, 215, 370, 430, 613, 740, 860, 1226, 1591, 2452, 3065, 3182, 6130, 6364, 7955, 12260, 15910, 22681, 26359, 31820, 45362, 52718, 90724, 105436, 113405, 131795, 226810, 263590, 453620, 527180, 975283, 1950566, 3901132, 4876415, 9752830, 19505660]

約数ペア:

[(1, 19505660), (2, 9752830), (4, 4876415), (5, 3901132), (10, 1950566), (20, 975283), (37, 527180), (43, 453620), (74, 263590), (86, 226810), (148, 131795), (172, 113405), (185, 105436), (215, 90724), (370, 52718), (430, 45362), (613, 31820), (740, 26359), (860, 22681), (1226, 15910), (1591, 12260), (2452, 7955), (3065, 6364), (3182, 6130)]