208039880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{1553}}^1$

素因数の和:1778

約数の個数: 64

約数和(自身を含む): 498461040

約数和(自身を除く): 290421160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 197, 340, 394, 680, 788, 985, 1553, 1576, 1970, 3106, 3349, 3940, 6212, 6698, 7765, 7880, 12424, 13396, 15530, 16745, 26401, 26792, 31060, 33490, 52802, 62120, 66980, 105604, 132005, 133960, 211208, 264010, 305941, 528020, 611882, 1056040, 1223764, 1529705, 2447528, 3059410, 5200997, 6118820, 10401994, 12237640, 20803988, 26004985, 41607976, 52009970, 104019940, 208039880]

約数ペア:

[(1, 208039880), (2, 104019940), (4, 52009970), (5, 41607976), (8, 26004985), (10, 20803988), (17, 12237640), (20, 10401994), (34, 6118820), (40, 5200997), (68, 3059410), (85, 2447528), (136, 1529705), (170, 1223764), (197, 1056040), (340, 611882), (394, 528020), (680, 305941), (788, 264010), (985, 211208), (1553, 133960), (1576, 132005), (1970, 105604), (3106, 66980), (3349, 62120), (3940, 52802), (6212, 33490), (6698, 31060), (7765, 26792), (7880, 26401), (12424, 16745), (13396, 15530)]