20909340

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12907}}^1$

素因数の和:12928

約数の個数: 60

約数和(自身を含む): 65598456

約数和(自身を除く): 44689116

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, 12907, 25814, 38721, 51628, 64535, 77442, 116163, 129070, 154884, 193605, 232326, 258140, 348489, 387210, 464652, 580815, 696978, 774420, 1045467, 1161630, 1393956, 1742445, 2090934, 2323260, 3484890, 4181868, 5227335, 6969780, 10454670, 20909340]

約数ペア:

[(1, 20909340), (2, 10454670), (3, 6969780), (4, 5227335), (5, 4181868), (6, 3484890), (9, 2323260), (10, 2090934), (12, 1742445), (15, 1393956), (18, 1161630), (20, 1045467), (27, 774420), (30, 696978), (36, 580815), (45, 464652), (54, 387210), (60, 348489), (81, 258140), (90, 232326), (108, 193605), (135, 154884), (162, 129070), (180, 116163), (270, 77442), (324, 64535), (405, 51628), (540, 38721), (810, 25814), (1620, 12907)]