19247580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9721}}^1$

素因数の和:9747

約数の個数: 72

約数和(自身を含む): 63698544

約数和(自身を除く): 44450964

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, 9721, 19442, 29163, 38884, 48605, 58326, 87489, 97210, 106931, 116652, 145815, 174978, 194420, 213862, 291630, 320793, 349956, 427724, 437445, 534655, 583260, 641586, 874890, 962379, 1069310, 1283172, 1603965, 1749780, 1924758, 2138620, 3207930, 3849516, 4811895, 6415860, 9623790, 19247580]

約数ペア:

[(1, 19247580), (2, 9623790), (3, 6415860), (4, 4811895), (5, 3849516), (6, 3207930), (9, 2138620), (10, 1924758), (11, 1749780), (12, 1603965), (15, 1283172), (18, 1069310), (20, 962379), (22, 874890), (30, 641586), (33, 583260), (36, 534655), (44, 437445), (45, 427724), (55, 349956), (60, 320793), (66, 291630), (90, 213862), (99, 194420), (110, 174978), (132, 145815), (165, 116652), (180, 106931), (198, 97210), (220, 87489), (330, 58326), (396, 48605), (495, 38884), (660, 29163), (990, 19442), (1980, 9721)]