128177960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{809}}^1$

素因数の和:1070

約数の個数: 64

約数和(自身を含む): 307054800

約数和(自身を除く): 178876840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 233, 340, 466, 680, 809, 932, 1165, 1618, 1864, 2330, 3236, 3961, 4045, 4660, 6472, 7922, 8090, 9320, 13753, 15844, 16180, 19805, 27506, 31688, 32360, 39610, 55012, 68765, 79220, 110024, 137530, 158440, 188497, 275060, 376994, 550120, 753988, 942485, 1507976, 1884970, 3204449, 3769940, 6408898, 7539880, 12817796, 16022245, 25635592, 32044490, 64088980, 128177960]

約数ペア:

[(1, 128177960), (2, 64088980), (4, 32044490), (5, 25635592), (8, 16022245), (10, 12817796), (17, 7539880), (20, 6408898), (34, 3769940), (40, 3204449), (68, 1884970), (85, 1507976), (136, 942485), (170, 753988), (233, 550120), (340, 376994), (466, 275060), (680, 188497), (809, 158440), (932, 137530), (1165, 110024), (1618, 79220), (1864, 68765), (2330, 55012), (3236, 39610), (3961, 32360), (4045, 31688), (4660, 27506), (6472, 19805), (7922, 16180), (8090, 15844), (9320, 13753)]