127981980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{101573}}^1$

素因数の和:101595

約数の個数: 72

約数和(自身を含む): 443675232

約数和(自身を除く): 315693252

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 101573, 203146, 304719, 406292, 507865, 609438, 711011, 914157, 1015730, 1218876, 1422022, 1523595, 1828314, 2031460, 2133033, 2844044, 3047190, 3555055, 3656628, 4266066, 4570785, 6094380, 6399099, 7110110, 8532132, 9141570, 10665165, 12798198, 14220220, 18283140, 21330330, 25596396, 31995495, 42660660, 63990990, 127981980]

約数ペア:

[(1, 127981980), (2, 63990990), (3, 42660660), (4, 31995495), (5, 25596396), (6, 21330330), (7, 18283140), (9, 14220220), (10, 12798198), (12, 10665165), (14, 9141570), (15, 8532132), (18, 7110110), (20, 6399099), (21, 6094380), (28, 4570785), (30, 4266066), (35, 3656628), (36, 3555055), (42, 3047190), (45, 2844044), (60, 2133033), (63, 2031460), (70, 1828314), (84, 1523595), (90, 1422022), (105, 1218876), (126, 1015730), (140, 914157), (180, 711011), (210, 609438), (252, 507865), (315, 406292), (420, 304719), (630, 203146), (1260, 101573)]