20495234228

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{156371}}^1$

素因数の和:156564

約数の個数: 48

約数和(自身を含む): 42593230848

約数和(自身を除く): 22097996620

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 151, 217, 302, 434, 604, 868, 1057, 2114, 4228, 4681, 9362, 18724, 32767, 65534, 131068, 156371, 312742, 625484, 1094597, 2189194, 4378388, 4847501, 9695002, 19390004, 23612021, 33932507, 47224042, 67865014, 94448084, 135730028, 165284147, 330568294, 661136588, 731972651, 1463945302, 2927890604, 5123808557, 10247617114, 20495234228]

約数ペア:

[(1, 20495234228), (2, 10247617114), (4, 5123808557), (7, 2927890604), (14, 1463945302), (28, 731972651), (31, 661136588), (62, 330568294), (124, 165284147), (151, 135730028), (217, 94448084), (302, 67865014), (434, 47224042), (604, 33932507), (868, 23612021), (1057, 19390004), (2114, 9695002), (4228, 4847501), (4681, 4378388), (9362, 2189194), (18724, 1094597), (32767, 625484), (65534, 312742), (131068, 156371)]