19615860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9907}}^1$

素因数の和:9933

約数の個数: 72

約数和(自身を含む): 64917216

約数和(自身を除く): 45301356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 9907, 19814, 29721, 39628, 49535, 59442, 89163, 99070, 108977, 118884, 148605, 178326, 198140, 217954, 297210, 326931, 356652, 435908, 445815, 544885, 594420, 653862, 891630, 980793, 1089770, 1307724, 1634655, 1783260, 1961586, 2179540, 3269310, 3923172, 4903965, 6538620, 9807930, 19615860]

約数ペア:

[(1, 19615860), (2, 9807930), (3, 6538620), (4, 4903965), (5, 3923172), (6, 3269310), (9, 2179540), (10, 1961586), (11, 1783260), (12, 1634655), (15, 1307724), (18, 1089770), (20, 980793), (22, 891630), (30, 653862), (33, 594420), (36, 544885), (44, 445815), (45, 435908), (55, 356652), (60, 326931), (66, 297210), (90, 217954), (99, 198140), (110, 178326), (132, 148605), (165, 118884), (180, 108977), (198, 99070), (220, 89163), (330, 59442), (396, 49535), (495, 39628), (660, 29721), (990, 19814), (1980, 9907)]