28020348

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1$

素因数の和:863

約数の個数: 72

約数和(自身を含む): 75723648

約数和(自身を除く): 47703300

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 43, 46, 69, 86, 92, 129, 138, 172, 207, 258, 276, 387, 414, 516, 774, 787, 828, 989, 1548, 1574, 1978, 2361, 2967, 3148, 3956, 4722, 5934, 7083, 8901, 9444, 11868, 14166, 17802, 18101, 28332, 33841, 35604, 36202, 54303, 67682, 72404, 101523, 108606, 135364, 162909, 203046, 217212, 304569, 325818, 406092, 609138, 651636, 778343, 1218276, 1556686, 2335029, 3113372, 4670058, 7005087, 9340116, 14010174, 28020348]

約数ペア:

[(1, 28020348), (2, 14010174), (3, 9340116), (4, 7005087), (6, 4670058), (9, 3113372), (12, 2335029), (18, 1556686), (23, 1218276), (36, 778343), (43, 651636), (46, 609138), (69, 406092), (86, 325818), (92, 304569), (129, 217212), (138, 203046), (172, 162909), (207, 135364), (258, 108606), (276, 101523), (387, 72404), (414, 67682), (516, 54303), (774, 36202), (787, 35604), (828, 33841), (989, 28332), (1548, 18101), (1574, 17802), (1978, 14166), (2361, 11868), (2967, 9444), (3148, 8901), (3956, 7083), (4722, 5934)]