208688320

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10691}}^1$

素因数の和:10769

約数の個数: 56

約数和(自身を含む): 505132848

約数和(自身を除く): 296444528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 976, 1220, 1952, 2440, 3904, 4880, 9760, 10691, 19520, 21382, 42764, 53455, 85528, 106910, 171056, 213820, 342112, 427640, 652151, 684224, 855280, 1304302, 1710560, 2608604, 3260755, 3421120, 5217208, 6521510, 10434416, 13043020, 20868832, 26086040, 41737664, 52172080, 104344160, 208688320]

約数ペア:

[(1, 208688320), (2, 104344160), (4, 52172080), (5, 41737664), (8, 26086040), (10, 20868832), (16, 13043020), (20, 10434416), (32, 6521510), (40, 5217208), (61, 3421120), (64, 3260755), (80, 2608604), (122, 1710560), (160, 1304302), (244, 855280), (305, 684224), (320, 652151), (488, 427640), (610, 342112), (976, 213820), (1220, 171056), (1952, 106910), (2440, 85528), (3904, 53455), (4880, 42764), (9760, 21382), (10691, 19520)]