20508900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{499}}^1$

素因数の和:653

約数の個数: 72

約数和(自身を含む): 59892000

約数和(自身を除く): 39383100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 137, 150, 274, 300, 411, 499, 548, 685, 822, 998, 1370, 1497, 1644, 1996, 2055, 2495, 2740, 2994, 3425, 4110, 4990, 5988, 6850, 7485, 8220, 9980, 10275, 12475, 13700, 14970, 20550, 24950, 29940, 37425, 41100, 49900, 68363, 74850, 136726, 149700, 205089, 273452, 341815, 410178, 683630, 820356, 1025445, 1367260, 1709075, 2050890, 3418150, 4101780, 5127225, 6836300, 10254450, 20508900]

約数ペア:

[(1, 20508900), (2, 10254450), (3, 6836300), (4, 5127225), (5, 4101780), (6, 3418150), (10, 2050890), (12, 1709075), (15, 1367260), (20, 1025445), (25, 820356), (30, 683630), (50, 410178), (60, 341815), (75, 273452), (100, 205089), (137, 149700), (150, 136726), (274, 74850), (300, 68363), (411, 49900), (499, 41100), (548, 37425), (685, 29940), (822, 24950), (998, 20550), (1370, 14970), (1497, 13700), (1644, 12475), (1996, 10275), (2055, 9980), (2495, 8220), (2740, 7485), (2994, 6850), (3425, 5988), (4110, 4990)]