28367745

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 54472704

約数和(自身を除く): 26104959

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 61, 103, 105, 129, 183, 215, 301, 305, 309, 427, 515, 645, 721, 903, 915, 1281, 1505, 1545, 2135, 2163, 2623, 3605, 4429, 4515, 6283, 6405, 7869, 10815, 13115, 13287, 18361, 18849, 22145, 31003, 31415, 39345, 43981, 55083, 66435, 91805, 93009, 94245, 131943, 155015, 219905, 270169, 275415, 465045, 659715, 810507, 1350845, 1891183, 4052535, 5673549, 9455915, 28367745]

約数ペア:

[(1, 28367745), (3, 9455915), (5, 5673549), (7, 4052535), (15, 1891183), (21, 1350845), (35, 810507), (43, 659715), (61, 465045), (103, 275415), (105, 270169), (129, 219905), (183, 155015), (215, 131943), (301, 94245), (305, 93009), (309, 91805), (427, 66435), (515, 55083), (645, 43981), (721, 39345), (903, 31415), (915, 31003), (1281, 22145), (1505, 18849), (1545, 18361), (2135, 13287), (2163, 13115), (2623, 10815), (3605, 7869), (4429, 6405), (4515, 6283)]