640318512

素因数分解:

$2^4\times 3^1\times {\mathrm{139}}^1\times {\mathrm{95971}}^1$

素因数の和:96121

約数の個数: 40

約数和(自身を含む): 1666073920

約数和(自身を除く): 1025755408

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 139, 278, 417, 556, 834, 1112, 1668, 2224, 3336, 6672, 95971, 191942, 287913, 383884, 575826, 767768, 1151652, 1535536, 2303304, 4606608, 13339969, 26679938, 40019907, 53359876, 80039814, 106719752, 160079628, 213439504, 320159256, 640318512]

約数ペア:

[(1, 640318512), (2, 320159256), (3, 213439504), (4, 160079628), (6, 106719752), (8, 80039814), (12, 53359876), (16, 40019907), (24, 26679938), (48, 13339969), (139, 4606608), (278, 2303304), (417, 1535536), (556, 1151652), (834, 767768), (1112, 575826), (1668, 383884), (2224, 287913), (3336, 191942), (6672, 95971)]