20440808

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1511}}^1$

素因数の和:1625

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 20383192

約数列:

[1, 2, 4, 8, 19, 38, 76, 89, 152, 178, 356, 712, 1511, 1691, 3022, 3382, 6044, 6764, 12088, 13528, 28709, 57418, 114836, 134479, 229672, 268958, 537916, 1075832, 2555101, 5110202, 10220404, 20440808]

約数ペア:

[(1, 20440808), (2, 10220404), (4, 5110202), (8, 2555101), (19, 1075832), (38, 537916), (76, 268958), (89, 229672), (152, 134479), (178, 114836), (356, 57418), (712, 28709), (1511, 13528), (1691, 12088), (3022, 6764), (3382, 6044)]