28482020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1553}}^1$

素因数の和:1700

約数の個数: 48

約数和(自身を含む): 68923008

約数和(自身を除く): 40440988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 131, 140, 262, 524, 655, 917, 1310, 1553, 1834, 2620, 3106, 3668, 4585, 6212, 7765, 9170, 10871, 15530, 18340, 21742, 31060, 43484, 54355, 108710, 203443, 217420, 406886, 813772, 1017215, 1424101, 2034430, 2848202, 4068860, 5696404, 7120505, 14241010, 28482020]

約数ペア:

[(1, 28482020), (2, 14241010), (4, 7120505), (5, 5696404), (7, 4068860), (10, 2848202), (14, 2034430), (20, 1424101), (28, 1017215), (35, 813772), (70, 406886), (131, 217420), (140, 203443), (262, 108710), (524, 54355), (655, 43484), (917, 31060), (1310, 21742), (1553, 18340), (1834, 15530), (2620, 10871), (3106, 9170), (3668, 7765), (4585, 6212)]