21640140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{120223}}^1$

素因数の和:120238

約数の個数: 36

約数和(自身を含む): 65642304

約数和(自身を除く): 44002164

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 120223, 240446, 360669, 480892, 601115, 721338, 1082007, 1202230, 1442676, 1803345, 2164014, 2404460, 3606690, 4328028, 5410035, 7213380, 10820070, 21640140]

約数ペア:

[(1, 21640140), (2, 10820070), (3, 7213380), (4, 5410035), (5, 4328028), (6, 3606690), (9, 2404460), (10, 2164014), (12, 1803345), (15, 1442676), (18, 1202230), (20, 1082007), (30, 721338), (36, 601115), (45, 480892), (60, 360669), (90, 240446), (180, 120223)]