18260984

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:268

約数の個数: 64

約数和(自身を含む): 41256960

約数和(自身を除く): 22995976

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 67, 124, 134, 157, 217, 248, 268, 314, 434, 469, 536, 628, 868, 938, 1099, 1256, 1736, 1876, 2077, 2198, 3752, 4154, 4396, 4867, 8308, 8792, 9734, 10519, 14539, 16616, 19468, 21038, 29078, 34069, 38936, 42076, 58156, 68138, 73633, 84152, 116312, 136276, 147266, 272552, 294532, 326089, 589064, 652178, 1304356, 2282623, 2608712, 4565246, 9130492, 18260984]

約数ペア:

[(1, 18260984), (2, 9130492), (4, 4565246), (7, 2608712), (8, 2282623), (14, 1304356), (28, 652178), (31, 589064), (56, 326089), (62, 294532), (67, 272552), (124, 147266), (134, 136276), (157, 116312), (217, 84152), (248, 73633), (268, 68138), (314, 58156), (434, 42076), (469, 38936), (536, 34069), (628, 29078), (868, 21038), (938, 19468), (1099, 16616), (1256, 14539), (1736, 10519), (1876, 9734), (2077, 8792), (2198, 8308), (3752, 4867), (4154, 4396)]