42542220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{509}}^1$

素因数の和:727

約数の個数: 96

約数和(自身を含む): 137088000

約数和(自身を除く): 94545780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 199, 210, 398, 420, 509, 597, 796, 995, 1018, 1194, 1393, 1527, 1990, 2036, 2388, 2545, 2786, 2985, 3054, 3563, 3980, 4179, 5090, 5572, 5970, 6108, 6965, 7126, 7635, 8358, 10180, 10689, 11940, 13930, 14252, 15270, 16716, 17815, 20895, 21378, 27860, 30540, 35630, 41790, 42756, 53445, 71260, 83580, 101291, 106890, 202582, 213780, 303873, 405164, 506455, 607746, 709037, 1012910, 1215492, 1418074, 1519365, 2025820, 2127111, 2836148, 3038730, 3545185, 4254222, 6077460, 7090370, 8508444, 10635555, 14180740, 21271110, 42542220]

約数ペア:

[(1, 42542220), (2, 21271110), (3, 14180740), (4, 10635555), (5, 8508444), (6, 7090370), (7, 6077460), (10, 4254222), (12, 3545185), (14, 3038730), (15, 2836148), (20, 2127111), (21, 2025820), (28, 1519365), (30, 1418074), (35, 1215492), (42, 1012910), (60, 709037), (70, 607746), (84, 506455), (105, 405164), (140, 303873), (199, 213780), (210, 202582), (398, 106890), (420, 101291), (509, 83580), (597, 71260), (796, 53445), (995, 42756), (1018, 41790), (1194, 35630), (1393, 30540), (1527, 27860), (1990, 21378), (2036, 20895), (2388, 17815), (2545, 16716), (2786, 15270), (2985, 14252), (3054, 13930), (3563, 11940), (3980, 10689), (4179, 10180), (5090, 8358), (5572, 7635), (5970, 7126), (6108, 6965)]