21782950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{523}}^1$

素因数の和:566

約数の個数: 72

約数和(自身を含む): 49999032

約数和(自身を除く): 28216082

約数列:

[1, 2, 5, 7, 10, 14, 17, 25, 34, 35, 49, 50, 70, 85, 98, 119, 170, 175, 238, 245, 350, 425, 490, 523, 595, 833, 850, 1046, 1190, 1225, 1666, 2450, 2615, 2975, 3661, 4165, 5230, 5950, 7322, 8330, 8891, 13075, 17782, 18305, 20825, 25627, 26150, 36610, 41650, 44455, 51254, 62237, 88910, 91525, 124474, 128135, 183050, 222275, 256270, 311185, 435659, 444550, 622370, 640675, 871318, 1281350, 1555925, 2178295, 3111850, 4356590, 10891475, 21782950]

約数ペア:

[(1, 21782950), (2, 10891475), (5, 4356590), (7, 3111850), (10, 2178295), (14, 1555925), (17, 1281350), (25, 871318), (34, 640675), (35, 622370), (49, 444550), (50, 435659), (70, 311185), (85, 256270), (98, 222275), (119, 183050), (170, 128135), (175, 124474), (238, 91525), (245, 88910), (350, 62237), (425, 51254), (490, 44455), (523, 41650), (595, 36610), (833, 26150), (850, 25627), (1046, 20825), (1190, 18305), (1225, 17782), (1666, 13075), (2450, 8891), (2615, 8330), (2975, 7322), (3661, 5950), (4165, 5230)]