420121289

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 564019200

約数和(自身を除く): 143897911

約数列:

[1, 7, 17, 23, 29, 67, 79, 119, 161, 203, 391, 469, 493, 553, 667, 1139, 1343, 1541, 1817, 1943, 2291, 2737, 3451, 4669, 5293, 7973, 9401, 10787, 11339, 12719, 13601, 16037, 26197, 30889, 33031, 37051, 38947, 44689, 52693, 79373, 89981, 121739, 153497, 183379, 216223, 231217, 272629, 312823, 368851, 629867, 759713, 852173, 895781, 1074479, 2069563, 2609449, 3530431, 5317991, 6270467, 14486941, 18266143, 24713017, 60017327, 420121289]

約数ペア:

[(1, 420121289), (7, 60017327), (17, 24713017), (23, 18266143), (29, 14486941), (67, 6270467), (79, 5317991), (119, 3530431), (161, 2609449), (203, 2069563), (391, 1074479), (469, 895781), (493, 852173), (553, 759713), (667, 629867), (1139, 368851), (1343, 312823), (1541, 272629), (1817, 231217), (1943, 216223), (2291, 183379), (2737, 153497), (3451, 121739), (4669, 89981), (5293, 79373), (7973, 52693), (9401, 44689), (10787, 38947), (11339, 37051), (12719, 33031), (13601, 30889), (16037, 26197)]