39818380

素因数分解:

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

素因数の和:1055

約数の個数: 72

約数和(自身を含む): 99743616

約数和(自身を除く): 59925236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 991, 1148, 1435, 1982, 2009, 2870, 3964, 4018, 4955, 5740, 6937, 8036, 9910, 10045, 13874, 19820, 20090, 27748, 34685, 40180, 40631, 48559, 69370, 81262, 97118, 138740, 162524, 194236, 203155, 242795, 284417, 406310, 485590, 568834, 812620, 971180, 1137668, 1422085, 1990919, 2844170, 3981838, 5688340, 7963676, 9954595, 19909190, 39818380]

約数ペア:

[(1, 39818380), (2, 19909190), (4, 9954595), (5, 7963676), (7, 5688340), (10, 3981838), (14, 2844170), (20, 1990919), (28, 1422085), (35, 1137668), (41, 971180), (49, 812620), (70, 568834), (82, 485590), (98, 406310), (140, 284417), (164, 242795), (196, 203155), (205, 194236), (245, 162524), (287, 138740), (410, 97118), (490, 81262), (574, 69370), (820, 48559), (980, 40631), (991, 40180), (1148, 34685), (1435, 27748), (1982, 20090), (2009, 19820), (2870, 13874), (3964, 10045), (4018, 9910), (4955, 8036), (5740, 6937)]