78318760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7927}}^1$

素因数の和:7970

約数の個数: 64

約数和(自身を含む): 199785600

約数和(自身を除く): 121466840

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 7927, 9880, 15854, 31708, 39635, 63416, 79270, 103051, 150613, 158540, 206102, 301226, 317080, 412204, 515255, 602452, 753065, 824408, 1030510, 1204904, 1506130, 1957969, 2061020, 3012260, 3915938, 4122040, 6024520, 7831876, 9789845, 15663752, 19579690, 39159380, 78318760]

約数ペア:

[(1, 78318760), (2, 39159380), (4, 19579690), (5, 15663752), (8, 9789845), (10, 7831876), (13, 6024520), (19, 4122040), (20, 3915938), (26, 3012260), (38, 2061020), (40, 1957969), (52, 1506130), (65, 1204904), (76, 1030510), (95, 824408), (104, 753065), (130, 602452), (152, 515255), (190, 412204), (247, 317080), (260, 301226), (380, 206102), (494, 158540), (520, 150613), (760, 103051), (988, 79270), (1235, 63416), (1976, 39635), (2470, 31708), (4940, 15854), (7927, 9880)]