201019850

素因数分解:

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

素因数の和:527

約数の個数: 48

約数和(自身を含む): 381672000

約数和(自身を除く): 180652150

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 199, 227, 398, 445, 454, 890, 995, 1135, 1990, 2225, 2270, 4450, 4975, 5675, 9950, 11350, 17711, 20203, 35422, 40406, 45173, 88555, 90346, 101015, 177110, 202030, 225865, 442775, 451730, 505075, 885550, 1010150, 1129325, 2258650, 4020397, 8040794, 20101985, 40203970, 100509925, 201019850]

約数ペア:

[(1, 201019850), (2, 100509925), (5, 40203970), (10, 20101985), (25, 8040794), (50, 4020397), (89, 2258650), (178, 1129325), (199, 1010150), (227, 885550), (398, 505075), (445, 451730), (454, 442775), (890, 225865), (995, 202030), (1135, 177110), (1990, 101015), (2225, 90346), (2270, 88555), (4450, 45173), (4975, 40406), (5675, 35422), (9950, 20203), (11350, 17711)]