21086200

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 53568000

約数和(自身を除く): 32481800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 31, 38, 40, 50, 62, 76, 95, 100, 124, 152, 155, 179, 190, 200, 248, 310, 358, 380, 475, 589, 620, 716, 760, 775, 895, 950, 1178, 1240, 1432, 1550, 1790, 1900, 2356, 2945, 3100, 3401, 3580, 3800, 4475, 4712, 5549, 5890, 6200, 6802, 7160, 8950, 11098, 11780, 13604, 14725, 17005, 17900, 22196, 23560, 27208, 27745, 29450, 34010, 35800, 44392, 55490, 58900, 68020, 85025, 105431, 110980, 117800, 136040, 138725, 170050, 210862, 221960, 277450, 340100, 421724, 527155, 554900, 680200, 843448, 1054310, 1109800, 2108620, 2635775, 4217240, 5271550, 10543100, 21086200]

約数ペア:

[(1, 21086200), (2, 10543100), (4, 5271550), (5, 4217240), (8, 2635775), (10, 2108620), (19, 1109800), (20, 1054310), (25, 843448), (31, 680200), (38, 554900), (40, 527155), (50, 421724), (62, 340100), (76, 277450), (95, 221960), (100, 210862), (124, 170050), (152, 138725), (155, 136040), (179, 117800), (190, 110980), (200, 105431), (248, 85025), (310, 68020), (358, 58900), (380, 55490), (475, 44392), (589, 35800), (620, 34010), (716, 29450), (760, 27745), (775, 27208), (895, 23560), (950, 22196), (1178, 17900), (1240, 17005), (1432, 14725), (1550, 13604), (1790, 11780), (1900, 11098), (2356, 8950), (2945, 7160), (3100, 6802), (3401, 6200), (3580, 5890), (3800, 5549), (4475, 4712)]