18556144

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:337

約数の個数: 40

約数和(自身を含む): 37028880

約数和(自身を除く): 18472736

約数列:

[1, 2, 4, 8, 16, 83, 89, 157, 166, 178, 314, 332, 356, 628, 664, 712, 1256, 1328, 1424, 2512, 7387, 13031, 13973, 14774, 26062, 27946, 29548, 52124, 55892, 59096, 104248, 111784, 118192, 208496, 223568, 1159759, 2319518, 4639036, 9278072, 18556144]

約数ペア:

[(1, 18556144), (2, 9278072), (4, 4639036), (8, 2319518), (16, 1159759), (83, 223568), (89, 208496), (157, 118192), (166, 111784), (178, 104248), (314, 59096), (332, 55892), (356, 52124), (628, 29548), (664, 27946), (712, 26062), (1256, 14774), (1328, 13973), (1424, 13031), (2512, 7387)]