639602520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{677}}^1\times {\mathrm{7873}}^1$

素因数の和:8564

約数の個数: 64

約数和(自身を含む): 1921885920

約数和(自身を除く): 1282283400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 677, 1354, 2031, 2708, 3385, 4062, 5416, 6770, 7873, 8124, 10155, 13540, 15746, 16248, 20310, 23619, 27080, 31492, 39365, 40620, 47238, 62984, 78730, 81240, 94476, 118095, 157460, 188952, 236190, 314920, 472380, 944760, 5330021, 10660042, 15990063, 21320084, 26650105, 31980126, 42640168, 53300210, 63960252, 79950315, 106600420, 127920504, 159900630, 213200840, 319801260, 639602520]

約数ペア:

[(1, 639602520), (2, 319801260), (3, 213200840), (4, 159900630), (5, 127920504), (6, 106600420), (8, 79950315), (10, 63960252), (12, 53300210), (15, 42640168), (20, 31980126), (24, 26650105), (30, 21320084), (40, 15990063), (60, 10660042), (120, 5330021), (677, 944760), (1354, 472380), (2031, 314920), (2708, 236190), (3385, 188952), (4062, 157460), (5416, 118095), (6770, 94476), (7873, 81240), (8124, 78730), (10155, 62984), (13540, 47238), (15746, 40620), (16248, 39365), (20310, 31492), (23619, 27080)]