400820004

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{65881}}^1$

素因数の和:65917

約数の個数: 54

約数和(自身を含む): 1097132946

約数和(自身を除く): 696312942

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 169, 234, 338, 468, 507, 676, 1014, 1521, 2028, 3042, 6084, 65881, 131762, 197643, 263524, 395286, 592929, 790572, 856453, 1185858, 1712906, 2371716, 2569359, 3425812, 5138718, 7708077, 10277436, 11133889, 15416154, 22267778, 30832308, 33401667, 44535556, 66803334, 100205001, 133606668, 200410002, 400820004]

約数ペア:

[(1, 400820004), (2, 200410002), (3, 133606668), (4, 100205001), (6, 66803334), (9, 44535556), (12, 33401667), (13, 30832308), (18, 22267778), (26, 15416154), (36, 11133889), (39, 10277436), (52, 7708077), (78, 5138718), (117, 3425812), (156, 2569359), (169, 2371716), (234, 1712906), (338, 1185858), (468, 856453), (507, 790572), (676, 592929), (1014, 395286), (1521, 263524), (2028, 197643), (3042, 131762), (6084, 65881)]