8254520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 20088000

約数和(自身を除く): 11833480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 199, 244, 305, 340, 398, 488, 610, 680, 796, 995, 1037, 1220, 1592, 1990, 2074, 2440, 3383, 3980, 4148, 5185, 6766, 7960, 8296, 10370, 12139, 13532, 16915, 20740, 24278, 27064, 33830, 41480, 48556, 60695, 67660, 97112, 121390, 135320, 206363, 242780, 412726, 485560, 825452, 1031815, 1650904, 2063630, 4127260, 8254520]

約数ペア:

[(1, 8254520), (2, 4127260), (4, 2063630), (5, 1650904), (8, 1031815), (10, 825452), (17, 485560), (20, 412726), (34, 242780), (40, 206363), (61, 135320), (68, 121390), (85, 97112), (122, 67660), (136, 60695), (170, 48556), (199, 41480), (244, 33830), (305, 27064), (340, 24278), (398, 20740), (488, 16915), (610, 13532), (680, 12139), (796, 10370), (995, 8296), (1037, 7960), (1220, 6766), (1592, 5185), (1990, 4148), (2074, 3980), (2440, 3383)]