129981180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{309479}}^1$

素因数の和:309498

約数の個数: 48

約数和(自身を含む): 415941120

約数和(自身を除く): 285959940

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, 420, 309479, 618958, 928437, 1237916, 1547395, 1856874, 2166353, 3094790, 3713748, 4332706, 4642185, 6189580, 6499059, 8665412, 9284370, 10831765, 12998118, 18568740, 21663530, 25996236, 32495295, 43327060, 64990590, 129981180]

約数ペア:

[(1, 129981180), (2, 64990590), (3, 43327060), (4, 32495295), (5, 25996236), (6, 21663530), (7, 18568740), (10, 12998118), (12, 10831765), (14, 9284370), (15, 8665412), (20, 6499059), (21, 6189580), (28, 4642185), (30, 4332706), (35, 3713748), (42, 3094790), (60, 2166353), (70, 1856874), (84, 1547395), (105, 1237916), (140, 928437), (210, 618958), (420, 309479)]