28441700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1053

約数の個数: 72

約数和(自身を含む): 72328704

約数和(自身を除く): 43887004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 70, 82, 100, 140, 164, 175, 205, 287, 350, 410, 574, 700, 820, 991, 1025, 1148, 1435, 1982, 2050, 2870, 3964, 4100, 4955, 5740, 6937, 7175, 9910, 13874, 14350, 19820, 24775, 27748, 28700, 34685, 40631, 49550, 69370, 81262, 99100, 138740, 162524, 173425, 203155, 284417, 346850, 406310, 568834, 693700, 812620, 1015775, 1137668, 1422085, 2031550, 2844170, 4063100, 5688340, 7110425, 14220850, 28441700]

約数ペア:

[(1, 28441700), (2, 14220850), (4, 7110425), (5, 5688340), (7, 4063100), (10, 2844170), (14, 2031550), (20, 1422085), (25, 1137668), (28, 1015775), (35, 812620), (41, 693700), (50, 568834), (70, 406310), (82, 346850), (100, 284417), (140, 203155), (164, 173425), (175, 162524), (205, 138740), (287, 99100), (350, 81262), (410, 69370), (574, 49550), (700, 40631), (820, 34685), (991, 28700), (1025, 27748), (1148, 24775), (1435, 19820), (1982, 14350), (2050, 13874), (2870, 9910), (3964, 7175), (4100, 6937), (4955, 5740)]