210052280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2777}}^1$

素因数の和:2880

約数の個数: 64

約数和(自身を含む): 496039680

約数和(自身を除く): 285987400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 155, 244, 248, 305, 310, 488, 610, 620, 1220, 1240, 1891, 2440, 2777, 3782, 5554, 7564, 9455, 11108, 13885, 15128, 18910, 22216, 27770, 37820, 55540, 75640, 86087, 111080, 169397, 172174, 338794, 344348, 430435, 677588, 688696, 846985, 860870, 1355176, 1693970, 1721740, 3387940, 3443480, 5251307, 6775880, 10502614, 21005228, 26256535, 42010456, 52513070, 105026140, 210052280]

約数ペア:

[(1, 210052280), (2, 105026140), (4, 52513070), (5, 42010456), (8, 26256535), (10, 21005228), (20, 10502614), (31, 6775880), (40, 5251307), (61, 3443480), (62, 3387940), (122, 1721740), (124, 1693970), (155, 1355176), (244, 860870), (248, 846985), (305, 688696), (310, 677588), (488, 430435), (610, 344348), (620, 338794), (1220, 172174), (1240, 169397), (1891, 111080), (2440, 86087), (2777, 75640), (3782, 55540), (5554, 37820), (7564, 27770), (9455, 22216), (11108, 18910), (13885, 15128)]