20770365

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{367}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 42393600

約数和(自身を除く): 21623235

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 147, 165, 231, 245, 343, 367, 385, 539, 735, 1029, 1101, 1155, 1617, 1715, 1835, 2569, 2695, 3773, 4037, 5145, 5505, 7707, 8085, 11319, 12111, 12845, 17983, 18865, 20185, 28259, 38535, 53949, 56595, 60555, 84777, 89915, 125881, 141295, 197813, 269745, 377643, 423885, 593439, 629405, 989065, 1384691, 1888215, 2967195, 4154073, 6923455, 20770365]

約数ペア:

[(1, 20770365), (3, 6923455), (5, 4154073), (7, 2967195), (11, 1888215), (15, 1384691), (21, 989065), (33, 629405), (35, 593439), (49, 423885), (55, 377643), (77, 269745), (105, 197813), (147, 141295), (165, 125881), (231, 89915), (245, 84777), (343, 60555), (367, 56595), (385, 53949), (539, 38535), (735, 28259), (1029, 20185), (1101, 18865), (1155, 17983), (1617, 12845), (1715, 12111), (1835, 11319), (2569, 8085), (2695, 7707), (3773, 5505), (4037, 5145)]