640185420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{4523}}^1$

素因数の和:4879

約数の個数: 96

約数和(自身を含む): 2055126528

約数和(自身を除く): 1414941108

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, 210, 337, 420, 674, 1011, 1348, 1685, 2022, 2359, 3370, 4044, 4523, 4718, 5055, 6740, 7077, 9046, 9436, 10110, 11795, 13569, 14154, 18092, 20220, 22615, 23590, 27138, 28308, 31661, 35385, 45230, 47180, 54276, 63322, 67845, 70770, 90460, 94983, 126644, 135690, 141540, 158305, 189966, 271380, 316610, 379932, 474915, 633220, 949830, 1524251, 1899660, 3048502, 4572753, 6097004, 7621255, 9145506, 10669757, 15242510, 18291012, 21339514, 22863765, 30485020, 32009271, 42679028, 45727530, 53348785, 64018542, 91455060, 106697570, 128037084, 160046355, 213395140, 320092710, 640185420]

約数ペア:

[(1, 640185420), (2, 320092710), (3, 213395140), (4, 160046355), (5, 128037084), (6, 106697570), (7, 91455060), (10, 64018542), (12, 53348785), (14, 45727530), (15, 42679028), (20, 32009271), (21, 30485020), (28, 22863765), (30, 21339514), (35, 18291012), (42, 15242510), (60, 10669757), (70, 9145506), (84, 7621255), (105, 6097004), (140, 4572753), (210, 3048502), (337, 1899660), (420, 1524251), (674, 949830), (1011, 633220), (1348, 474915), (1685, 379932), (2022, 316610), (2359, 271380), (3370, 189966), (4044, 158305), (4523, 141540), (4718, 135690), (5055, 126644), (6740, 94983), (7077, 90460), (9046, 70770), (9436, 67845), (10110, 63322), (11795, 54276), (13569, 47180), (14154, 45230), (18092, 35385), (20220, 31661), (22615, 28308), (23590, 27138)]