123319120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{81131}}^1$

素因数の和:81163

約数の個数: 40

約数和(自身を含む): 301811040

約数和(自身を除く): 178491920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 81131, 162262, 324524, 405655, 649048, 811310, 1298096, 1541489, 1622620, 3082978, 3245240, 6165956, 6490480, 7707445, 12331912, 15414890, 24663824, 30829780, 61659560, 123319120]

約数ペア:

[(1, 123319120), (2, 61659560), (4, 30829780), (5, 24663824), (8, 15414890), (10, 12331912), (16, 7707445), (19, 6490480), (20, 6165956), (38, 3245240), (40, 3082978), (76, 1622620), (80, 1541489), (95, 1298096), (152, 811310), (190, 649048), (304, 405655), (380, 324524), (760, 162262), (1520, 81131)]