19877719504

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1\times {\mathrm{389}}^1$

素因数の和:908

約数の個数: 80

約数和(自身を含む): 39501221760

約数和(自身を除く): 19623502256

約数列:

[1, 2, 4, 8, 16, 101, 103, 202, 206, 307, 389, 404, 412, 614, 778, 808, 824, 1228, 1556, 1616, 1648, 2456, 3112, 4912, 6224, 10403, 20806, 31007, 31621, 39289, 40067, 41612, 62014, 63242, 78578, 80134, 83224, 119423, 124028, 126484, 157156, 160268, 166448, 238846, 248056, 252968, 314312, 320536, 477692, 496112, 505936, 628624, 641072, 955384, 1910768, 3193721, 4046767, 6387442, 8093534, 12061723, 12300569, 12774884, 16187068, 24123446, 24601138, 25549768, 32374136, 48246892, 49202276, 51099536, 64748272, 96493784, 98404552, 192987568, 196809104, 1242357469, 2484714938, 4969429876, 9938859752, 19877719504]

約数ペア:

[(1, 19877719504), (2, 9938859752), (4, 4969429876), (8, 2484714938), (16, 1242357469), (101, 196809104), (103, 192987568), (202, 98404552), (206, 96493784), (307, 64748272), (389, 51099536), (404, 49202276), (412, 48246892), (614, 32374136), (778, 25549768), (808, 24601138), (824, 24123446), (1228, 16187068), (1556, 12774884), (1616, 12300569), (1648, 12061723), (2456, 8093534), (3112, 6387442), (4912, 4046767), (6224, 3193721), (10403, 1910768), (20806, 955384), (31007, 641072), (31621, 628624), (39289, 505936), (40067, 496112), (41612, 477692), (62014, 320536), (63242, 314312), (78578, 252968), (80134, 248056), (83224, 238846), (119423, 166448), (124028, 160268), (126484, 157156)]