81590750

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 163425600

約数和(自身を除く): 81834850

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 89, 95, 125, 178, 190, 193, 250, 386, 445, 475, 890, 950, 965, 1691, 1930, 2225, 2375, 3382, 3667, 4450, 4750, 4825, 7334, 8455, 9650, 11125, 16910, 17177, 18335, 22250, 24125, 34354, 36670, 42275, 48250, 84550, 85885, 91675, 171770, 183350, 211375, 326363, 422750, 429425, 458375, 652726, 858850, 916750, 1631815, 2147125, 3263630, 4294250, 8159075, 16318150, 40795375, 81590750]

約数ペア:

[(1, 81590750), (2, 40795375), (5, 16318150), (10, 8159075), (19, 4294250), (25, 3263630), (38, 2147125), (50, 1631815), (89, 916750), (95, 858850), (125, 652726), (178, 458375), (190, 429425), (193, 422750), (250, 326363), (386, 211375), (445, 183350), (475, 171770), (890, 91675), (950, 85885), (965, 84550), (1691, 48250), (1930, 42275), (2225, 36670), (2375, 34354), (3382, 24125), (3667, 22250), (4450, 18335), (4750, 17177), (4825, 16910), (7334, 11125), (8455, 9650)]