20169922724

素因数分解:

$2^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{463}}^1\times {\mathrm{4729}}^1$

素因数の和:5257

約数の個数: 72

約数和(自身を含む): 42033277440

約数和(自身を除く): 21863354716

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 329, 463, 658, 926, 1316, 1852, 2303, 3241, 4606, 4729, 6482, 9212, 9458, 12964, 18916, 21761, 22687, 33103, 43522, 45374, 66206, 87044, 90748, 132412, 152327, 222263, 231721, 304654, 444526, 463442, 609308, 889052, 926884, 1066289, 1555841, 2132578, 2189527, 3111682, 4265156, 4379054, 6223364, 8758108, 10890887, 15326689, 21781774, 30653378, 43563548, 61306756, 102907769, 107286823, 205815538, 214573646, 411631076, 429147292, 720354383, 1440708766, 2881417532, 5042480681, 10084961362, 20169922724]

約数ペア:

[(1, 20169922724), (2, 10084961362), (4, 5042480681), (7, 2881417532), (14, 1440708766), (28, 720354383), (47, 429147292), (49, 411631076), (94, 214573646), (98, 205815538), (188, 107286823), (196, 102907769), (329, 61306756), (463, 43563548), (658, 30653378), (926, 21781774), (1316, 15326689), (1852, 10890887), (2303, 8758108), (3241, 6223364), (4606, 4379054), (4729, 4265156), (6482, 3111682), (9212, 2189527), (9458, 2132578), (12964, 1555841), (18916, 1066289), (21761, 926884), (22687, 889052), (33103, 609308), (43522, 463442), (45374, 444526), (66206, 304654), (87044, 231721), (90748, 222263), (132412, 152327)]