20940384

素因数分解:

$2^5\times 3^1\times {\mathrm{331}}^1\times {\mathrm{659}}^1$

素因数の和:1003

約数の個数: 48

約数和(自身を含む): 55218240

約数和(自身を除く): 34277856

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 331, 659, 662, 993, 1318, 1324, 1977, 1986, 2636, 2648, 3954, 3972, 5272, 5296, 7908, 7944, 10544, 10592, 15816, 15888, 21088, 31632, 31776, 63264, 218129, 436258, 654387, 872516, 1308774, 1745032, 2617548, 3490064, 5235096, 6980128, 10470192, 20940384]

約数ペア:

[(1, 20940384), (2, 10470192), (3, 6980128), (4, 5235096), (6, 3490064), (8, 2617548), (12, 1745032), (16, 1308774), (24, 872516), (32, 654387), (48, 436258), (96, 218129), (331, 63264), (659, 31776), (662, 31632), (993, 21088), (1318, 15888), (1324, 15816), (1977, 10592), (1986, 10544), (2636, 7944), (2648, 7908), (3954, 5296), (3972, 5272)]