20677300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 51941120

約数和(自身を除く): 31263820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 109, 140, 175, 218, 271, 350, 436, 542, 545, 700, 763, 1084, 1090, 1355, 1526, 1897, 2180, 2710, 2725, 3052, 3794, 3815, 5420, 5450, 6775, 7588, 7630, 9485, 10900, 13550, 15260, 18970, 19075, 27100, 29539, 37940, 38150, 47425, 59078, 76300, 94850, 118156, 147695, 189700, 206773, 295390, 413546, 590780, 738475, 827092, 1033865, 1476950, 2067730, 2953900, 4135460, 5169325, 10338650, 20677300]

約数ペア:

[(1, 20677300), (2, 10338650), (4, 5169325), (5, 4135460), (7, 2953900), (10, 2067730), (14, 1476950), (20, 1033865), (25, 827092), (28, 738475), (35, 590780), (50, 413546), (70, 295390), (100, 206773), (109, 189700), (140, 147695), (175, 118156), (218, 94850), (271, 76300), (350, 59078), (436, 47425), (542, 38150), (545, 37940), (700, 29539), (763, 27100), (1084, 19075), (1090, 18970), (1355, 15260), (1526, 13550), (1897, 10900), (2180, 9485), (2710, 7630), (2725, 7588), (3052, 6775), (3794, 5450), (3815, 5420)]