128823138

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^2\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:300

約数の個数: 72

約数和(自身を含む): 297106992

約数和(自身を除く): 168283854

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 83, 138, 163, 166, 207, 249, 326, 414, 489, 498, 529, 747, 978, 1058, 1467, 1494, 1587, 1909, 2934, 3174, 3749, 3818, 4761, 5727, 7498, 9522, 11247, 11454, 13529, 17181, 22494, 27058, 33741, 34362, 40587, 43907, 67482, 81174, 86227, 87814, 121761, 131721, 172454, 243522, 258681, 263442, 311167, 395163, 517362, 622334, 776043, 790326, 933501, 1552086, 1867002, 2800503, 5601006, 7156841, 14313682, 21470523, 42941046, 64411569, 128823138]

約数ペア:

[(1, 128823138), (2, 64411569), (3, 42941046), (6, 21470523), (9, 14313682), (18, 7156841), (23, 5601006), (46, 2800503), (69, 1867002), (83, 1552086), (138, 933501), (163, 790326), (166, 776043), (207, 622334), (249, 517362), (326, 395163), (414, 311167), (489, 263442), (498, 258681), (529, 243522), (747, 172454), (978, 131721), (1058, 121761), (1467, 87814), (1494, 86227), (1587, 81174), (1909, 67482), (2934, 43907), (3174, 40587), (3749, 34362), (3818, 33741), (4761, 27058), (5727, 22494), (7498, 17181), (9522, 13529), (11247, 11454)]