28128120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1493}}^1$

素因数の和:1664

約数の個数: 64

約数和(自身を含む): 84978720

約数和(自身を除く): 56850600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 1256, 1493, 1570, 1884, 2355, 2986, 3140, 3768, 4479, 4710, 5972, 6280, 7465, 8958, 9420, 11944, 14930, 17916, 18840, 22395, 29860, 35832, 44790, 59720, 89580, 179160, 234401, 468802, 703203, 937604, 1172005, 1406406, 1875208, 2344010, 2812812, 3516015, 4688020, 5625624, 7032030, 9376040, 14064060, 28128120]

約数ペア:

[(1, 28128120), (2, 14064060), (3, 9376040), (4, 7032030), (5, 5625624), (6, 4688020), (8, 3516015), (10, 2812812), (12, 2344010), (15, 1875208), (20, 1406406), (24, 1172005), (30, 937604), (40, 703203), (60, 468802), (120, 234401), (157, 179160), (314, 89580), (471, 59720), (628, 44790), (785, 35832), (942, 29860), (1256, 22395), (1493, 18840), (1570, 17916), (1884, 14930), (2355, 11944), (2986, 9420), (3140, 8958), (3768, 7465), (4479, 6280), (4710, 5972)]