20809248

素因数分解:

$2^5\times 3^1\times {\mathrm{43}}^1\times {\mathrm{71}}^2$

素因数の和:198

約数の個数: 72

約数和(自身を含む): 56692944

約数和(自身を除く): 35883696

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 43, 48, 71, 86, 96, 129, 142, 172, 213, 258, 284, 344, 426, 516, 568, 688, 852, 1032, 1136, 1376, 1704, 2064, 2272, 3053, 3408, 4128, 5041, 6106, 6816, 9159, 10082, 12212, 15123, 18318, 20164, 24424, 30246, 36636, 40328, 48848, 60492, 73272, 80656, 97696, 120984, 146544, 161312, 216763, 241968, 293088, 433526, 483936, 650289, 867052, 1300578, 1734104, 2601156, 3468208, 5202312, 6936416, 10404624, 20809248]

約数ペア:

[(1, 20809248), (2, 10404624), (3, 6936416), (4, 5202312), (6, 3468208), (8, 2601156), (12, 1734104), (16, 1300578), (24, 867052), (32, 650289), (43, 483936), (48, 433526), (71, 293088), (86, 241968), (96, 216763), (129, 161312), (142, 146544), (172, 120984), (213, 97696), (258, 80656), (284, 73272), (344, 60492), (426, 48848), (516, 40328), (568, 36636), (688, 30246), (852, 24424), (1032, 20164), (1136, 18318), (1376, 15123), (1704, 12212), (2064, 10082), (2272, 9159), (3053, 6816), (3408, 6106), (4128, 5041)]