20487750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{59}}^1\times {\mathrm{463}}^1$

素因数の和:542

約数の個数: 64

約数和(自身を含む): 52116480

約数和(自身を除く): 31628730

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 59, 75, 118, 125, 150, 177, 250, 295, 354, 375, 463, 590, 750, 885, 926, 1389, 1475, 1770, 2315, 2778, 2950, 4425, 4630, 6945, 7375, 8850, 11575, 13890, 14750, 22125, 23150, 27317, 34725, 44250, 54634, 57875, 69450, 81951, 115750, 136585, 163902, 173625, 273170, 347250, 409755, 682925, 819510, 1365850, 2048775, 3414625, 4097550, 6829250, 10243875, 20487750]

約数ペア:

[(1, 20487750), (2, 10243875), (3, 6829250), (5, 4097550), (6, 3414625), (10, 2048775), (15, 1365850), (25, 819510), (30, 682925), (50, 409755), (59, 347250), (75, 273170), (118, 173625), (125, 163902), (150, 136585), (177, 115750), (250, 81951), (295, 69450), (354, 57875), (375, 54634), (463, 44250), (590, 34725), (750, 27317), (885, 23150), (926, 22125), (1389, 14750), (1475, 13890), (1770, 11575), (2315, 8850), (2778, 7375), (2950, 6945), (4425, 4630)]