128049180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{304879}}^1$

素因数の和:304898

約数の個数: 48

約数和(自身を含む): 409758720

約数和(自身を除く): 281709540

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, 304879, 609758, 914637, 1219516, 1524395, 1829274, 2134153, 3048790, 3658548, 4268306, 4573185, 6097580, 6402459, 8536612, 9146370, 10670765, 12804918, 18292740, 21341530, 25609836, 32012295, 42683060, 64024590, 128049180]

約数ペア:

[(1, 128049180), (2, 64024590), (3, 42683060), (4, 32012295), (5, 25609836), (6, 21341530), (7, 18292740), (10, 12804918), (12, 10670765), (14, 9146370), (15, 8536612), (20, 6402459), (21, 6097580), (28, 4573185), (30, 4268306), (35, 3658548), (42, 3048790), (60, 2134153), (70, 1829274), (84, 1524395), (105, 1219516), (140, 914637), (210, 609758), (420, 304879)]