21552500

素因数分解:

$2^2\times 5^4\times {\mathrm{37}}^1\times {\mathrm{233}}^1$

素因数の和:294

約数の個数: 60

約数和(自身を含む): 48612564

約数和(自身を除く): 27060064

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 125, 148, 185, 233, 250, 370, 466, 500, 625, 740, 925, 932, 1165, 1250, 1850, 2330, 2500, 3700, 4625, 4660, 5825, 8621, 9250, 11650, 17242, 18500, 23125, 23300, 29125, 34484, 43105, 46250, 58250, 86210, 92500, 116500, 145625, 172420, 215525, 291250, 431050, 582500, 862100, 1077625, 2155250, 4310500, 5388125, 10776250, 21552500]

約数ペア:

[(1, 21552500), (2, 10776250), (4, 5388125), (5, 4310500), (10, 2155250), (20, 1077625), (25, 862100), (37, 582500), (50, 431050), (74, 291250), (100, 215525), (125, 172420), (148, 145625), (185, 116500), (233, 92500), (250, 86210), (370, 58250), (466, 46250), (500, 43105), (625, 34484), (740, 29125), (925, 23300), (932, 23125), (1165, 18500), (1250, 17242), (1850, 11650), (2330, 9250), (2500, 8621), (3700, 5825), (4625, 4660)]