8897420

素因数分解:

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

素因数の和:1327

約数の個数: 48

約数和(自身を含む): 21806400

約数和(自身を除く): 12908980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1297, 1372, 1715, 2594, 3430, 5188, 6485, 6860, 9079, 12970, 18158, 25940, 36316, 45395, 63553, 90790, 127106, 181580, 254212, 317765, 444871, 635530, 889742, 1271060, 1779484, 2224355, 4448710, 8897420]

約数ペア:

[(1, 8897420), (2, 4448710), (4, 2224355), (5, 1779484), (7, 1271060), (10, 889742), (14, 635530), (20, 444871), (28, 317765), (35, 254212), (49, 181580), (70, 127106), (98, 90790), (140, 63553), (196, 45395), (245, 36316), (343, 25940), (490, 18158), (686, 12970), (980, 9079), (1297, 6860), (1372, 6485), (1715, 5188), (2594, 3430)]