643987248

素因数分解:

$2^4\times 3^1\times {\mathrm{61}}^1\times {\mathrm{219941}}^1$

素因数の和:220013

約数の個数: 40

約数和(自身を含む): 1690914096

約数和(自身を除く): 1046926848

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 61, 122, 183, 244, 366, 488, 732, 976, 1464, 2928, 219941, 439882, 659823, 879764, 1319646, 1759528, 2639292, 3519056, 5278584, 10557168, 13416401, 26832802, 40249203, 53665604, 80498406, 107331208, 160996812, 214662416, 321993624, 643987248]

約数ペア:

[(1, 643987248), (2, 321993624), (3, 214662416), (4, 160996812), (6, 107331208), (8, 80498406), (12, 53665604), (16, 40249203), (24, 26832802), (48, 13416401), (61, 10557168), (122, 5278584), (183, 3519056), (244, 2639292), (366, 1759528), (488, 1319646), (732, 879764), (976, 659823), (1464, 439882), (2928, 219941)]