77128220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{1201}}^1$

素因数の和:1255

約数の個数: 72

約数和(自身を含む): 184771440

約数和(自身を除く): 107643220

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 169, 190, 247, 260, 338, 380, 494, 676, 845, 988, 1201, 1235, 1690, 2402, 2470, 3211, 3380, 4804, 4940, 6005, 6422, 12010, 12844, 15613, 16055, 22819, 24020, 31226, 32110, 45638, 62452, 64220, 78065, 91276, 114095, 156130, 202969, 228190, 296647, 312260, 405938, 456380, 593294, 811876, 1014845, 1186588, 1483235, 2029690, 2966470, 3856411, 4059380, 5932940, 7712822, 15425644, 19282055, 38564110, 77128220]

約数ペア:

[(1, 77128220), (2, 38564110), (4, 19282055), (5, 15425644), (10, 7712822), (13, 5932940), (19, 4059380), (20, 3856411), (26, 2966470), (38, 2029690), (52, 1483235), (65, 1186588), (76, 1014845), (95, 811876), (130, 593294), (169, 456380), (190, 405938), (247, 312260), (260, 296647), (338, 228190), (380, 202969), (494, 156130), (676, 114095), (845, 91276), (988, 78065), (1201, 64220), (1235, 62452), (1690, 45638), (2402, 32110), (2470, 31226), (3211, 24020), (3380, 22819), (4804, 16055), (4940, 15613), (6005, 12844), (6422, 12010)]