7721480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:534

約数の個数: 64

約数和(自身を含む): 19353600

約数和(自身を除く): 11632120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 479, 520, 620, 806, 958, 1240, 1612, 1916, 2015, 2395, 3224, 3832, 4030, 4790, 6227, 8060, 9580, 12454, 14849, 16120, 19160, 24908, 29698, 31135, 49816, 59396, 62270, 74245, 118792, 124540, 148490, 193037, 249080, 296980, 386074, 593960, 772148, 965185, 1544296, 1930370, 3860740, 7721480]

約数ペア:

[(1, 7721480), (2, 3860740), (4, 1930370), (5, 1544296), (8, 965185), (10, 772148), (13, 593960), (20, 386074), (26, 296980), (31, 249080), (40, 193037), (52, 148490), (62, 124540), (65, 118792), (104, 74245), (124, 62270), (130, 59396), (155, 49816), (248, 31135), (260, 29698), (310, 24908), (403, 19160), (479, 16120), (520, 14849), (620, 12454), (806, 9580), (958, 8060), (1240, 6227), (1612, 4790), (1916, 4030), (2015, 3832), (2395, 3224)]