78870540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{187787}}^1$

素因数の和:187806

約数の個数: 48

約数和(自身を含む): 252387072

約数和(自身を除く): 173516532

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, 187787, 375574, 563361, 751148, 938935, 1126722, 1314509, 1877870, 2253444, 2629018, 2816805, 3755740, 3943527, 5258036, 5633610, 6572545, 7887054, 11267220, 13145090, 15774108, 19717635, 26290180, 39435270, 78870540]

約数ペア:

[(1, 78870540), (2, 39435270), (3, 26290180), (4, 19717635), (5, 15774108), (6, 13145090), (7, 11267220), (10, 7887054), (12, 6572545), (14, 5633610), (15, 5258036), (20, 3943527), (21, 3755740), (28, 2816805), (30, 2629018), (35, 2253444), (42, 1877870), (60, 1314509), (70, 1126722), (84, 938935), (105, 751148), (140, 563361), (210, 375574), (420, 187787)]