51478020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{25999}}^1$

素因数の和:26025

約数の個数: 72

約数和(自身を含む): 170352000

約数和(自身を除く): 118873980

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, 25999, 51998, 77997, 103996, 129995, 155994, 233991, 259990, 285989, 311988, 389985, 467982, 519980, 571978, 779970, 857967, 935964, 1143956, 1169955, 1429945, 1559940, 1715934, 2339910, 2573901, 2859890, 3431868, 4289835, 4679820, 5147802, 5719780, 8579670, 10295604, 12869505, 17159340, 25739010, 51478020]

約数ペア:

[(1, 51478020), (2, 25739010), (3, 17159340), (4, 12869505), (5, 10295604), (6, 8579670), (9, 5719780), (10, 5147802), (11, 4679820), (12, 4289835), (15, 3431868), (18, 2859890), (20, 2573901), (22, 2339910), (30, 1715934), (33, 1559940), (36, 1429945), (44, 1169955), (45, 1143956), (55, 935964), (60, 857967), (66, 779970), (90, 571978), (99, 519980), (110, 467982), (132, 389985), (165, 311988), (180, 285989), (198, 259990), (220, 233991), (330, 155994), (396, 129995), (495, 103996), (660, 77997), (990, 51998), (1980, 25999)]