3940520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:162

約数の個数: 64

約数和(自身を含む): 9504000

約数和(自身を除く): 5563480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 43, 58, 79, 86, 116, 145, 158, 172, 215, 232, 290, 316, 344, 395, 430, 580, 632, 790, 860, 1160, 1247, 1580, 1720, 2291, 2494, 3160, 3397, 4582, 4988, 6235, 6794, 9164, 9976, 11455, 12470, 13588, 16985, 18328, 22910, 24940, 27176, 33970, 45820, 49880, 67940, 91640, 98513, 135880, 197026, 394052, 492565, 788104, 985130, 1970260, 3940520]

約数ペア:

[(1, 3940520), (2, 1970260), (4, 985130), (5, 788104), (8, 492565), (10, 394052), (20, 197026), (29, 135880), (40, 98513), (43, 91640), (58, 67940), (79, 49880), (86, 45820), (116, 33970), (145, 27176), (158, 24940), (172, 22910), (215, 18328), (232, 16985), (290, 13588), (316, 12470), (344, 11455), (395, 9976), (430, 9164), (580, 6794), (632, 6235), (790, 4988), (860, 4582), (1160, 3397), (1247, 3160), (1580, 2494), (1720, 2291)]