40203970

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 73872000

約数和(自身を除く): 33668030

約数列:

[1, 2, 5, 10, 89, 178, 199, 227, 398, 445, 454, 890, 995, 1135, 1990, 2270, 17711, 20203, 35422, 40406, 45173, 88555, 90346, 101015, 177110, 202030, 225865, 451730, 4020397, 8040794, 20101985, 40203970]

約数ペア:

[(1, 40203970), (2, 20101985), (5, 8040794), (10, 4020397), (89, 451730), (178, 225865), (199, 202030), (227, 177110), (398, 101015), (445, 90346), (454, 88555), (890, 45173), (995, 40406), (1135, 35422), (1990, 20203), (2270, 17711)]