28761180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2$

素因数の和:144

約数の個数: 144

約数和(自身を含む): 97069056

約数和(自身を除く): 68307876

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 47, 60, 62, 70, 84, 93, 94, 105, 124, 140, 141, 155, 186, 188, 210, 217, 235, 282, 310, 329, 372, 420, 434, 465, 470, 564, 620, 651, 658, 705, 868, 930, 940, 987, 1085, 1302, 1316, 1410, 1457, 1645, 1860, 1974, 2170, 2209, 2604, 2820, 2914, 3255, 3290, 3948, 4340, 4371, 4418, 4935, 5828, 6510, 6580, 6627, 7285, 8742, 8836, 9870, 10199, 11045, 13020, 13254, 14570, 15463, 17484, 19740, 20398, 21855, 22090, 26508, 29140, 30597, 30926, 33135, 40796, 43710, 44180, 46389, 50995, 61194, 61852, 66270, 68479, 77315, 87420, 92778, 101990, 122388, 132540, 136958, 152985, 154630, 185556, 203980, 205437, 231945, 273916, 305970, 309260, 342395, 410874, 463890, 479353, 611940, 684790, 821748, 927780, 958706, 1027185, 1369580, 1438059, 1917412, 2054370, 2396765, 2876118, 4108740, 4793530, 5752236, 7190295, 9587060, 14380590, 28761180]

約数ペア:

[(1, 28761180), (2, 14380590), (3, 9587060), (4, 7190295), (5, 5752236), (6, 4793530), (7, 4108740), (10, 2876118), (12, 2396765), (14, 2054370), (15, 1917412), (20, 1438059), (21, 1369580), (28, 1027185), (30, 958706), (31, 927780), (35, 821748), (42, 684790), (47, 611940), (60, 479353), (62, 463890), (70, 410874), (84, 342395), (93, 309260), (94, 305970), (105, 273916), (124, 231945), (140, 205437), (141, 203980), (155, 185556), (186, 154630), (188, 152985), (210, 136958), (217, 132540), (235, 122388), (282, 101990), (310, 92778), (329, 87420), (372, 77315), (420, 68479), (434, 66270), (465, 61852), (470, 61194), (564, 50995), (620, 46389), (651, 44180), (658, 43710), (705, 40796), (868, 33135), (930, 30926), (940, 30597), (987, 29140), (1085, 26508), (1302, 22090), (1316, 21855), (1410, 20398), (1457, 19740), (1645, 17484), (1860, 15463), (1974, 14570), (2170, 13254), (2209, 13020), (2604, 11045), (2820, 10199), (2914, 9870), (3255, 8836), (3290, 8742), (3948, 7285), (4340, 6627), (4371, 6580), (4418, 6510), (4935, 5828)]