257660368

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{121081}}^1$

素因数の和:121115

約数の個数: 40

約数和(自身を含む): 600566720

約数和(自身を除く): 342906352

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 121081, 242162, 484324, 847567, 968648, 1695134, 1937296, 2300539, 3390268, 4601078, 6780536, 9202156, 13561072, 16103773, 18404312, 32207546, 36808624, 64415092, 128830184, 257660368]

約数ペア:

[(1, 257660368), (2, 128830184), (4, 64415092), (7, 36808624), (8, 32207546), (14, 18404312), (16, 16103773), (19, 13561072), (28, 9202156), (38, 6780536), (56, 4601078), (76, 3390268), (112, 2300539), (133, 1937296), (152, 1695134), (266, 968648), (304, 847567), (532, 484324), (1064, 242162), (2128, 121081)]