20789027987

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:532

約数の個数: 64

約数和(自身を含む): 26467553280

約数和(自身を除く): 5678525293

約数列:

[1, 7, 13, 79, 91, 113, 157, 163, 553, 791, 1027, 1099, 1141, 1469, 2041, 2119, 7189, 8927, 10283, 12403, 12877, 14287, 14833, 17741, 18419, 25591, 62489, 86821, 90139, 116051, 124187, 128933, 161239, 167401, 179137, 230633, 239447, 332683, 812357, 1128673, 1171807, 1401539, 1455101, 1614431, 1676129, 2021689, 2328781, 2891783, 9810773, 10185707, 14151823, 18220007, 18916313, 20242481, 26281957, 37593179, 127540049, 132414191, 183973699, 228450857, 263152253, 1599155999, 2969861141, 20789027987]

約数ペア:

[(1, 20789027987), (7, 2969861141), (13, 1599155999), (79, 263152253), (91, 228450857), (113, 183973699), (157, 132414191), (163, 127540049), (553, 37593179), (791, 26281957), (1027, 20242481), (1099, 18916313), (1141, 18220007), (1469, 14151823), (2041, 10185707), (2119, 9810773), (7189, 2891783), (8927, 2328781), (10283, 2021689), (12403, 1676129), (12877, 1614431), (14287, 1455101), (14833, 1401539), (17741, 1171807), (18419, 1128673), (25591, 812357), (62489, 332683), (86821, 239447), (90139, 230633), (116051, 179137), (124187, 167401), (128933, 161239)]