201220840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{1487}}^1$

素因数の和:1714

約数の個数: 64

約数和(自身を含む): 482112000

約数和(自身を除く): 280891160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 199, 340, 398, 680, 796, 995, 1487, 1592, 1990, 2974, 3383, 3980, 5948, 6766, 7435, 7960, 11896, 13532, 14870, 16915, 25279, 27064, 29740, 33830, 50558, 59480, 67660, 101116, 126395, 135320, 202232, 252790, 295913, 505580, 591826, 1011160, 1183652, 1479565, 2367304, 2959130, 5030521, 5918260, 10061042, 11836520, 20122084, 25152605, 40244168, 50305210, 100610420, 201220840]

約数ペア:

[(1, 201220840), (2, 100610420), (4, 50305210), (5, 40244168), (8, 25152605), (10, 20122084), (17, 11836520), (20, 10061042), (34, 5918260), (40, 5030521), (68, 2959130), (85, 2367304), (136, 1479565), (170, 1183652), (199, 1011160), (340, 591826), (398, 505580), (680, 295913), (796, 252790), (995, 202232), (1487, 135320), (1592, 126395), (1990, 101116), (2974, 67660), (3383, 59480), (3980, 50558), (5948, 33830), (6766, 29740), (7435, 27064), (7960, 25279), (11896, 16915), (13532, 14870)]