12478864

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:359

約数の個数: 40

約数和(自身を含む): 25276160

約数和(自身を除く): 12797296

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 139, 181, 248, 278, 362, 496, 556, 724, 1112, 1448, 2224, 2896, 4309, 5611, 8618, 11222, 17236, 22444, 25159, 34472, 44888, 50318, 68944, 89776, 100636, 201272, 402544, 779929, 1559858, 3119716, 6239432, 12478864]

約数ペア:

[(1, 12478864), (2, 6239432), (4, 3119716), (8, 1559858), (16, 779929), (31, 402544), (62, 201272), (124, 100636), (139, 89776), (181, 68944), (248, 50318), (278, 44888), (362, 34472), (496, 25159), (556, 22444), (724, 17236), (1112, 11222), (1448, 8618), (2224, 5611), (2896, 4309)]