19389780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11969}}^1$

素因数の和:11990

約数の個数: 60

約数和(自身を含む): 60831540

約数和(自身を除く): 41441760

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 11969, 23938, 35907, 47876, 59845, 71814, 107721, 119690, 143628, 179535, 215442, 239380, 323163, 359070, 430884, 538605, 646326, 718140, 969489, 1077210, 1292652, 1615815, 1938978, 2154420, 3231630, 3877956, 4847445, 6463260, 9694890, 19389780]

約数ペア:

[(1, 19389780), (2, 9694890), (3, 6463260), (4, 4847445), (5, 3877956), (6, 3231630), (9, 2154420), (10, 1938978), (12, 1615815), (15, 1292652), (18, 1077210), (20, 969489), (27, 718140), (30, 646326), (36, 538605), (45, 430884), (54, 359070), (60, 323163), (81, 239380), (90, 215442), (108, 179535), (135, 143628), (162, 119690), (180, 107721), (270, 71814), (324, 59845), (405, 47876), (540, 35907), (810, 23938), (1620, 11969)]