20003029072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{290539}}^1$

素因数の和:290891

約数の個数: 40

約数和(自身を含む): 41863327520

約数和(自身を除く): 21860298448

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 331, 662, 1324, 2648, 4303, 5296, 8606, 17212, 34424, 68848, 290539, 581078, 1162156, 2324312, 3777007, 4648624, 7554014, 15108028, 30216056, 60432112, 96168409, 192336818, 384673636, 769347272, 1250189317, 1538694544, 2500378634, 5000757268, 10001514536, 20003029072]

約数ペア:

[(1, 20003029072), (2, 10001514536), (4, 5000757268), (8, 2500378634), (13, 1538694544), (16, 1250189317), (26, 769347272), (52, 384673636), (104, 192336818), (208, 96168409), (331, 60432112), (662, 30216056), (1324, 15108028), (2648, 7554014), (4303, 4648624), (5296, 3777007), (8606, 2324312), (17212, 1162156), (34424, 581078), (68848, 290539)]