20603055

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 38568960

約数和(自身を除く): 17965905

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 61, 69, 89, 115, 165, 183, 253, 267, 305, 345, 445, 671, 759, 915, 979, 1265, 1335, 1403, 2013, 2047, 2937, 3355, 3795, 4209, 4895, 5429, 6141, 7015, 10065, 10235, 14685, 15433, 16287, 21045, 22517, 27145, 30705, 46299, 59719, 67551, 77165, 81435, 112585, 124867, 179157, 231495, 298595, 337755, 374601, 624335, 895785, 1373537, 1873005, 4120611, 6867685, 20603055]

約数ペア:

[(1, 20603055), (3, 6867685), (5, 4120611), (11, 1873005), (15, 1373537), (23, 895785), (33, 624335), (55, 374601), (61, 337755), (69, 298595), (89, 231495), (115, 179157), (165, 124867), (183, 112585), (253, 81435), (267, 77165), (305, 67551), (345, 59719), (445, 46299), (671, 30705), (759, 27145), (915, 22517), (979, 21045), (1265, 16287), (1335, 15433), (1403, 14685), (2013, 10235), (2047, 10065), (2937, 7015), (3355, 6141), (3795, 5429), (4209, 4895)]