28531580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{191}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 75866112

約数和(自身を除く): 47334532

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 97, 110, 140, 154, 191, 194, 220, 308, 382, 385, 388, 485, 679, 764, 770, 955, 970, 1067, 1337, 1358, 1540, 1910, 1940, 2101, 2134, 2674, 2716, 3395, 3820, 4202, 4268, 5335, 5348, 6685, 6790, 7469, 8404, 10505, 10670, 13370, 13580, 14707, 14938, 18527, 21010, 21340, 26740, 29414, 29876, 37054, 37345, 42020, 58828, 73535, 74108, 74690, 92635, 129689, 147070, 149380, 185270, 203797, 259378, 294140, 370540, 407594, 518756, 648445, 815188, 1018985, 1296890, 1426579, 2037970, 2593780, 2853158, 4075940, 5706316, 7132895, 14265790, 28531580]

約数ペア:

[(1, 28531580), (2, 14265790), (4, 7132895), (5, 5706316), (7, 4075940), (10, 2853158), (11, 2593780), (14, 2037970), (20, 1426579), (22, 1296890), (28, 1018985), (35, 815188), (44, 648445), (55, 518756), (70, 407594), (77, 370540), (97, 294140), (110, 259378), (140, 203797), (154, 185270), (191, 149380), (194, 147070), (220, 129689), (308, 92635), (382, 74690), (385, 74108), (388, 73535), (485, 58828), (679, 42020), (764, 37345), (770, 37054), (955, 29876), (970, 29414), (1067, 26740), (1337, 21340), (1358, 21010), (1540, 18527), (1910, 14938), (1940, 14707), (2101, 13580), (2134, 13370), (2674, 10670), (2716, 10505), (3395, 8404), (3820, 7469), (4202, 6790), (4268, 6685), (5335, 5348)]