2542120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{1297}}^1$

素因数の和:1322

約数の個数: 48

約数和(自身を含む): 6658740

約数和(自身を除く): 4116620

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1297, 1960, 2594, 5188, 6485, 9079, 10376, 12970, 18158, 25940, 36316, 45395, 51880, 63553, 72632, 90790, 127106, 181580, 254212, 317765, 363160, 508424, 635530, 1271060, 2542120]

約数ペア:

[(1, 2542120), (2, 1271060), (4, 635530), (5, 508424), (7, 363160), (8, 317765), (10, 254212), (14, 181580), (20, 127106), (28, 90790), (35, 72632), (40, 63553), (49, 51880), (56, 45395), (70, 36316), (98, 25940), (140, 18158), (196, 12970), (245, 10376), (280, 9079), (392, 6485), (490, 5188), (980, 2594), (1297, 1960)]