19899250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 43400448

約数和(自身を除く): 23501198

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 83, 125, 137, 166, 175, 250, 274, 350, 415, 581, 685, 830, 875, 959, 1162, 1370, 1750, 1918, 2075, 2905, 3425, 4150, 4795, 5810, 6850, 9590, 10375, 11371, 14525, 17125, 20750, 22742, 23975, 29050, 34250, 47950, 56855, 72625, 79597, 113710, 119875, 145250, 159194, 239750, 284275, 397985, 568550, 795970, 1421375, 1989925, 2842750, 3979850, 9949625, 19899250]

約数ペア:

[(1, 19899250), (2, 9949625), (5, 3979850), (7, 2842750), (10, 1989925), (14, 1421375), (25, 795970), (35, 568550), (50, 397985), (70, 284275), (83, 239750), (125, 159194), (137, 145250), (166, 119875), (175, 113710), (250, 79597), (274, 72625), (350, 56855), (415, 47950), (581, 34250), (685, 29050), (830, 23975), (875, 22742), (959, 20750), (1162, 17125), (1370, 14525), (1750, 11371), (1918, 10375), (2075, 9590), (2905, 6850), (3425, 5810), (4150, 4795)]